Tuesday, January 28, 2020

Are you an owl or a lark?

Are you an owl or a lark?
Do you wake up late and go to bed late?

Dr Abe V. Rotor
Living with Nature - School on Blog (avrotor.blogspot.com)

Our clocks have individual variations. For example, there are people who are more active in the afternoon and evening, and there are those who are opposite – they are more active in the morning.
Chances are, you already know instinctively whether you are a morning person (sometimes known as a “lark”) or a night person ( sometimes called an “owl”).

If you aren’t sure which one you are, here are some questions to ask yourself:
1. Do you wake up early and go to bed early?
2. Do you generally rise from your bed wide eyed and raring to go?
3. Do you feel that you do your best work early on the day?
4. Do you find yourself waking up just before you alarm is scheduled to go off?

If you answered yes to these questions, then you are most likely a morning person.

1. Do you wake up late and go to bed late?
2. Do you wake up sleepy eyed and sluggish?
3. Do you generally suffer through the early morning hours and get your surge of energy and creativeness later in the day?
4. Do you find it easy to sleep through the buzz or ring of an alarm clock?

If you answered yes to these questions, then you are most likely a night person.

Difference between Night and Day People

1. Morning People tend to have more introverted personalities, while Night People tend to be more extroverted. This is particularly true the age of forty.

2. Morning People tend to have less flexible circadian rhythms, which means they benefit more, both physically and mentally, from following structured daily routine. PHOTO Long billed lark Wikipedia.

3. Morning People tend to sleep more soundly than Night People and wake up feeling more refreshed.

4. Women are more likely to be Morning People than men.

Don't worry, an owl can be as happy as a lark, and a lark as vigilant as an owl. Just follow your inner rhythm. ~

Lesson Former Paaralang Bayan sa Himpapawid (People's School-on-Air) with Ms Melly C Tenorio
738 DZRB AM, [www.pbs.gov.ph] 8-9 evening class Monday to Friday
Reference: Living with Nature, AVRotor (Acknowledgment: Internet, Wikipedia, Owl  photo by Richard Stuart, lark Wikipedia)

Thursday, January 23, 2020

Woodland in the City (Arboretum of the University of Santo Tomas, Manila)

Woodland in the City (Arboretum of  the University of Santo Tomas, Manila)
An arboretum is a botanical garden containing living collections of woody plants intended as a "living gene bank" and field laboratory. As a park an arboretum adds beauty to the place, and creates a mini-climate in the area.
This article is dedicated to Dr Romualdo M del Rosario, former supervising scientist of the UST Botanical Garden. Dr Del Rosario is presently a professor and adviser at the De La Salle University DasmariƱas. He served for many years as the first director of the La Union Botanical Garden, and Assistant Director of the National Museum.

Dr Abe V Rotor
Living with Nature School on Blog 
avrotor.blogspot.com
Chinese parasol, a relative of the Baobab Tree (tree mentioned in The Little Prince by Antoine de Saint Exupery', also the queer looking giant tree in The God's Must be Crazy). Lower photos show the tree in bloom which is usually in summer. 

Talisay tree (Terminalia catappa) or umbrella tree in its incipient deciduous stage. With the coming of Amihan season the leaves turn golden yellow to orange and red, then fall off to the ground leaving the tree a almost bare. New leaves will soon replace the crown.
Fire tree (Delonix regia) during its non-flowering season is a lush towering tree, its leaves almost blocking the sun. At the onset of summer, its leaves fall off and are replaced by clusters of fire red flowers, hence the name of the tree.
Dita (Alstonia scholaris) is the tallest tree on the campus, surpassing the height of the main building sans its tower cross. 
Another dita tree, also in the Botanical Garden proper, is estimated to be one hundred years old. Dita is very resistant to pollution and to injury. It produces milky sap that immediately closes its wounds. The sap traps insects like a fly catcher entombing victim in the process. Fossil insects are made this way.
Left: Prop roots of rubber tree (Hevea braziliensis), a relative of the balete (right photo). They belong to Family Moraceae which also includes fig, nangka and breadfruit. Here graduate students examine the hanging roots which will eventually become prop roots or false trunks. As the tree grows these prop roots spread out of the central trunk making it appear to be "walking." Centuries old trees like the banyan (Ficus benghalensis) become so massive that they form natural arches and caves.
Anahaw palm (Livistona asiatica) towers over neighboring narra trees (Pterocarpus indicus). Anahaw as well as buri (Corypha elata) are now threatened species.
Camphor trees dominated the front lawn of UST until recently. Cinnamomum camphora (also known as camphorwood or camphor laurel) is a large evergreen tree that is a source of oil, pharmaceutical products and timber. Being sensitive to flooding and pollution, even the older trees such as these in the photo apparently exhibit premature aging. Right, camphor tree laden with climbing Philodendron.
Botong (Barringtona asiatica), produces nut-like fruits that bear seeds poisonous to insects and fish. Graduate students examine the unique shape and structure of the pod. 

Antipolo (Arthocarpus sp) tree has broad leaves, perhaps the biggest of the dicots. It is related to nangka and rimas, as well as figs.

Plants are allowed to grow naturally like in a forest. Here students conduct field studies in biology and ecology.
Lianas make a natural curtain. Students study interrelationships of plants - competition, symbiosis, parasitism, succession, etc.

Top views of the Botanical Garden, formerly Pharmacy Garden. It is one of the few gardens in the heart of the metropolis. It is a sanctuary of wildlife displaced by urbanization.

NOTE: In the strict sense, an arboretum is a collection of trees. Related collections include a fruticetum (from the Latin frutex, meaning shrub), and a viticetum, a collection of vines. More commonly today, an arboretum is a botanical garden containing living collections of woody plants intended as a "living gene bank" and field laboratory. As a park an arboretum adds beauty to the place, and creates a mini-climate in the area.

Thursday, January 16, 2020

Mayon Volcano - Gentle but Fiery

Mayon Volcano - Gentle but Fiery  
Mayon is a paradox. Tourists flock while residents escape danger; lava destroys but fertilizes the field, so with volcanic ash; it is self-destruct and self-healing. People curse, people revere.
Dr Abe V Rotor 
Partas Bus Co
This is how close I got over the crater of Mayon Volcano on Cebu Pacific flight from Manila to Iloilo in 2012. It was a bright morning with a dash of rainbow dramatically unveiling  the majestic cone.
Old photos (August 14, 1928) showing the ruins of the church and belfry of Cagsawa after the 1814 eruption. (Acknowledgement: Internet) 
 
Mayon is a paradox. Tourists flock while residents escape danger; lava destroys but fertilizes the field, so with volcanic ash; it is self-destruct and self-healing.  People curse, people revere.  Beauty begets beauty only after an episode of disaster. Science versus superstition; technology versus unpredictability; impermanence versus balance. Enigma is the word.   (Acknowledgement: Internet, Wikipedia, National Geographic)    
And what is peace and harmony?  Perfection and symmetry? Gentleness and majesty?  Ask the artist, the native of the place, the tourist, a survivor of eruptions, big and small.  Ask a child, a balikbayan. (Acknowledgement: Internet, Wikipedia)   

Left: This is how fire and water meet on the slope, cascading through gullies and solidifying in the process to become part of the volcano's perfect cone. Left:  Before the catastrophic episode, the volcano groans as magma in its vowels expands and rises until the volcano can no longer contain the tremendous pressure.  Result: eruption, a cyclic phenomenon that draws awe and fear, mystery and respect to this beautiful, enigmatic creation.  (Paintings in acrylic by the author) 

Mt Makiling - Endangered Geo-Ecosystem

Mt Makiling - Endangered Geo-Ecosystem

"Everybody loves this legendary mountain,  her majestic pose be near or far, reclining in peace and beauty." avr

Dr Abe V Rotor

 Living with Nature School on Blog [avrotor.blogspot.com]

The mountain's profile of a reclining deity, Maria Makiling, to whom the mountain was named, has lost much of her youthful features.

Satelite image of Mt Makiling and southeastern shore of Laguna Bay. Mt Makiling has lost much of its original vegetative cover to encroaching human settlements, swiden (kaingin) farming, commerce and tourism. In fact the mountain's profile of a reclining deity, Maria Makiling for which the mountain is named, has lost much of her youthful 
features. 
  
Statue of Maria Makiling protector of Mt Makiling, UPLB Laguna.
On the trail to the Mudspring with the author's family


Mudspring Crater, author with his children.

A Trek to Mt Makiling's Mystical Crater - Mudspring
It's a long trail if you start at the foot of Mt Makiling,
take the road with a four-wheel drive,
then stop where the road ends and from here starts
a long trek you really have to strive.

Among the huge towering trees you're but a dwarf
among creatures crawling or flying,
searching far beyond of what they are looking for;
theirs for living, yours for meaning.

Incessantly the crater pops scalding mud
and gases that boggle the mind,
a mystic shroud where mist and cloud meet,
a spectacle of a different kind.

Everybody loves this legendary mountain,
though fiery inside to be free;
Lofty is her majestic pose be near or far
reclining in peace and beauty.

Wonder the young mind thinks of this world,
a hybrid of fantasy and reality,
where spirits live and mortals dare to tread,
in a lifetime journey to infinity. ~

NOTE: Mount Makiling, or Mount Maquiling, is a dormant volcano in Laguna province on the island of Luzon, Philippines. The mountain rises to an elevation of 1,090 m (3,580 ft) above mean sea level and is the highest feature of the Laguna Volcanic Field. The volcano has no recorded historic eruption but volcanism is still evident through geothermal features like mud spring and hot springs. South of the mountain is the Makiling-Banahaw Geothermal Plant. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) classify the volcano as potentially active.

Mount Makiling is a state-owned forest reserve administered by the University of the Philippines, Los BaƱos. Prior its transfer to the university, the mountain was the first national park of the Philippines. Mount Makiling National Park was established on February 23, 1933 by Proc. No. 552. However, it was decommissioned as a national park on June 20, 1963 by Republic Act no. 3523 when it was transferred to the University for use in forestry education and information.

Now known as Mount Makiling Forest Reserve, it was declared an ASEAN Heritage Park in 2013.
(Wikipedia) 
 "Nature's peace will flow into you as sunshine flows into trees. The winds will blow their own freshness into you, and the storms their energy, while cares will drop off like autumn leaves."
—John Muir, Our National Parks
 
                            "This grand show is eternal. It is always sunrise somewhere; the dew is never all dried at once; a shower is forever falling; vapor is ever rising. Eternal sunrise, eternal sunset, eternal dawn and gloaming, on sea and continents and islands, each in its turn, as the round earth rolls."
—John Muir, John of the Mountains: The Unpublished Journals of John Muir

"There is a pleasure in the pathless woods,
There is a rapture on the lonely shore,
There is society, where none intrudes,
By the deep Sea, and music in its roar:
I love not Man the less, but Nature more."

—Lord Byron "Childe Harold's Pilgrimage"



"Those who contemplate the beauty of the earth find reserves of strength that will endure as long as life lasts. ... There is something infinitely healing in the repeated refrains of nature — the assurance that dawn comes after night, and spring after winter."
—Rachel Carson, Silent Spring
 
"If we surrendered
to earth's intelligence
we could rise up rooted, like trees."

—Rainer Maria Rilke, Rilke's Book of Hours: Love Poems to God.

Sunday, January 5, 2020

Nesting Fish

Nesting Fish 
"Make your nest truly a beautiful home,
never  ask why the task, and for whom."  AVR
   
Painting and Poem by Dr Abe V Rotor
Living with Nature - School on Blog


Nesting Tilapia in acrylic by AVR 2011

Make a nest for your bride, make it true, 
An altar to knot your vows;
Make a nursery and a sanctuary, too
Safe from fangs and jaws. 

Abode for the homeless and those in grief,
A stopover for the weary guest, 
A fort ensconced among rocks and reefs
To hold and withstand any test.

Build a nest, but not of the proud bower bird,
Lavish but only in courtship;
Don't be like the marauding salmon in herd,
Returning only after a long trip.

Make your nest truly a beautiful home,
And none in your brood shall ever want;
Never shall you ask why the task, and for whom;   
In life's drama, this is your part. ~     

LESSON on Former Paaralang Bayan sa Himpapawid 
738 DZRB AM with Ms Melly C Tenorio 
8 to 9 evening class, Mon to Fri

Fish Incognito (Pointillism Art)

Fish Incognito (Pointillism Art)

Painting and Poem by Dr Abe V Rotor

 A School of Grouper Fish (38" x 26"), AVR. Pointillism is an art style
of Impressionism in the later part of the 19th century in Europe by
French painter Seurat

Fish, tell me where you live, your home;
The ocean is so huge to be your own;
Fish answers: I am a fugitive in pursuit,
Hunted or hunter whichever may suit.    

Fish, tell me of your kin and your shoal;
How you live together as a school;
Fish answers: I live by the rules of the sea,
By number and luck, and by being free.  

Fish, tell me if I am friend to you, or a foe;
I gave you a name, regard you with awe;
Fish answers: Neither, I'd rather be unseen,
Far from the dreadful fate of your cuisine. ~ 


Thursday, January 2, 2020

Water Crisis II: The La Mesa Dam - Heart of the Angat-Ipo-La Mesa Water System

Water Crisis II: 
The La Mesa Dam -  Heart of the Angat-Ipo-La Mesa Water System 
The price of water in the Philippines is one of the highest in the world. 

Dr Abe V Rotor
Living with Nature - School on Blog [avrotor.blogspot.com]
From the Sierra Madre mountains a series of water reservoirs - Angat, Ipo, La Mesa - makes a picturesque from the air of a living artery of Nature's wondrous water cycle. Clouds form and condense into rain, funneled by their vast watersheds, and stored in man-made dams for the use of millions of residents in Metro Manila.
  
Profile of the Angat-Ipo-Lamesa water system. Angat Dam completed in 1967 is situated in Norzagaray, Bulacan. It has a total water storage capacity of 850 million cubic meters and supplies 81.4 percent of the total output of the system. Downstream 7.5 kilometers away is Ipo Dam completed in 1984 has a share of 12 percent. It diverts the water to La Mesa Dam, which contributes 3.4 percent.. It is here where water undergoes a series of treatment to make it potable before it is released to thousands of households in Metro Manila. La Mesa is the heart of this complex water system. 

Call it an engineering feat, an ideal profile of ecology, seat of rich biodiversity, source of inspiration of lovers and artists, an attraction to tourists. It's all of the above answer to queries about the complex because water, other than being basic to life, makes the living world awesome and beautiful. It is water that connects the land, air and sea, into a biosphere, the only known living planet in the whole universe.


The La Mesa dam complex gives respite from urban living, a feeling of freedom from skyscrapers and congested traffic, a change from cacophony of sounds to nature's music in the trees and on the lake shore.  Take a deep breath of the clean air, relax and believe in the power of silence and meditation. Take your family to the La Mesa Eco Park on a weekend. It's perfect for biking, hiking, rappelling, hook-and-line fishing, boating, and games of many kinds.There are scheduled educational and cultural shows. It provides in situ and hands-on study of Nature. It is a wildlife sanctuary, the only kind in Metro Manila and suburbs.

As practicum, I would take my students to the La Mesa Eco Park for a whole day field lecture and demonstration. There we would identify the best we can  plants, animals and other organisms of their common and scientific names and their taxonomic classification. We would bring along a microscope and study the plankton and other microorganisms that comprise the living minutiae of the lake and ponds, then photograph them magnified, a technique called photomicrography. 


There's another field of photography La Mesa Dam offers - Nature Photography. It is not only recording the things and events occurring in nature but capturing the ephemeral wonders of creation like a honeybee pollinating flowers,  Mimosa or makahiya drooping at the slightest touch, a skink darting across a footpath, a big carp suddenly appearing, and many happenings beyond our expectation.  Then there are things of human interests as we commune with nature.  Fishing with bamboo pole, kite flying, picking fruits, napping under a tree, watching birds in the trees and sky, camping under the stars, and many things we don't usually experience in city living. 

To the artist the park is a perfect place for on-the-spot painting, writing poetry and essays, composing songs and prayers. It offers a natural stage for drama with backdrop of trees, water, sky, in dynamic fashion and design which no stage or screen can truly copy. La Mesa is indeed  the heart and soul of a Paradise Lost and Paradise Regained," the essence of the genius John Milton's masterpieces of the same epic titles. 
  
La Mesa Dam is a 700-hectare water reservoir built to supply water to Metro Manila and its suburbs. It is part of a 2,000-hectare watershed located in Fairview, Quezon City, San Jose del Monte City in Bulacan and Rodriguez in Rizal. The reservoir is elevated at 100 meters above sea level.The La Mesa reservoir occupies 27 square kilometers and can hold up to 50.5 million cubic meters of water. Greater Lagro and adjoining Fairview, both middle class hug the lower limits of the reservoir proper. The La Mesa Eco Park is situated along the spillway of the dam as indicated in this map.

But aerial view and imagery may be deceiving even on a clear day. The water system complex is facing serious problems today, some perilous at that. Authorities and scientists, in spite of protective measures and rehabilitation programs of the government, private sector and citizens, are not comfortable with the condition of the system, raising vital questions and expressing sentiments as to the sustainability of the system to keep up with the ever increasing demand of water, considering the following developments:

First, the watersheds of the three reservoirs are shrinking and thinning as a result of encroachment by illegal loggers and settlers, with kaingin or slash-and-burn planting rampant in certain places, in fact in the heart of the watersheds. The carrying capacity and longevity of the reservoir depends mainly on the integrity of its watershed. A controversial subdivision has been built inside La Mesa Dam.  The issue has not been resolved in spite of its clear violation to law.


Second, pollution coming from land, air and feeder streams is destroying the system and the health of people. Take the case of the Payatas Dumpsite, QC's version of Manila's Smokey Mountain. Because of the closeness of the open dump site, tons and tons of carbon and ash, poisonous and obnoxious gases, and leachate find their way into the reservoirs. A petition initiated by the QC government and residents has been filled with the Supreme Court to close Payatas landfill permanently. (PDI March 2015)

Third, Global Warming has reduced rainfall over the watershed complex in the last two decades or so, necessitating cloud seeding to augment receding water level. Other than depriving the needed rainfall, dry air sucks moisture from both reservoirs and watersheds predisposing the watershed to forest fire, more so during an El NiƱo year. . 
 

Fourth, the cyclical El NiƱo which now occurs on closer interval since industrial times, is causing the water level to plunge to critical level. Unfortunately Metro Manila is virtually dependent wholly on the Angat-Ipo-La Mesa system. Even underground water also falls to critical level during El NiƱo. By the way 2015 was a mild El Nino year.  We are in the midst of a major El NiƱo,  which is expected to extend 
 nationwide throughout 2020..

Fifth, The price of water in the Philippines is one of the highest in the world. Internet research showed that the minimum consumption per family of 6 in MM is 10 cubic meters per month. At P56.48 per cubic meter, monthly bill is P568.80. This is not all; there are other charges added amounting to P200, which then total to P768.80. Over and above this figure are proposed price adjustments. (Increased rates since 2015 are not included in this computation.) .

Historically from P4.97 in 1997 to P56.48 per cubic meter lately, the increase in charges is an exorbitant 1,036.69 percent. Water prices rose by 45 percent to 61 percent per year for 17 years. In addition, the government extended the water contracts to Maynilad and Manila Water by another 15 years. What went wrong?

Water privatization in Metro Manila began when President Fidel Ramos instructed the government in 1994 to solve what he called the water crisis in Manila by engaging with the private sector.
-----------------------------------
How did Metro Manila water prices become so expensive and prohibitive? The answer: Monopoly pricing. Consumers have no choice but accept the rates. The other answer: Failure of governance. MWSS abetted and encouraged atrociously high water prices. Tony Lopez, Virtual Reality
----------------------------------
Sixth, Angat dam which supplies 81.4 percent of the total output of the system is structurally in danger (Angat Dam: Another tragedy in waiting - Boo Chanco, The Philippine Star, September 10, 2014)

Philvocs warned of a catastrophic disaster unless we move fast to reinforce the structural integrity of Angat Dam. To quote Dr Renato Solidum, Philvocs Executive Director, "Angat dam is an old dam and must be fortified as soon as possible. It is old and still sitting along the West Valley fault line.... A magnitude of 7.2 or an intensity 8 earthquake could spell disaster of unimaginable proportions."

As a background two super typhoons Emma (Welming1867) and Rita (Kading 1978) took the lives of several people and destroyed millions of pesos worth of properties as a result of sudden and uncoordinated release of flood water from the dam. We can imagine a worse scenario, as Philvocs warned, had the dam given way to the tremendous force. It reminds us of the movie Evan Almighty, a modern day Noah who was commanded by God to save the people from flood caused by the collapse of a poorly constructed dam. Unlike the bible which had a tragic ending the movie exposed corruption of some politicians.

La Mesa Dam has grown old through the years of faithful service. It is like a heart that is already tired and weak, exacerbated by the poor condition of the very system it is a part of and which it serves. Which too, has passed its prime. Time, incessant use. misuse and abuse have altogether taken their toll, and will be taking more to the brink of disaster. The system has long been diagnosed and the finding is clear with a stern warning.

In physiology the heart is forced to work harder as the system declines. while the body becomes idle, overweight, and indulgent to the Good Life characteristic of our postmodern times where affluence has virtually no end. Its demand far exceeds supply violating reciprocity which is governed by a simple rule: what is taken must be returned - the basis of the principle of sustainability. The bounty and beauty of nature must be preserved and conserved. This is the greatest heritage we can bequeath to our children and children's children.~ 
  
Overlooking the La Mesa Lake
La Mesa Water Treatment  Plant
 
Located in Novaliches, Quezon City, La Mesa Dam was built in 1929. Water from the Novaliches Portal is conveyed through three open channels, namely La Mesa Treatment Plants 1 and 2, as well as the Balara Treatment Plant. Photos show normal water level, and excess water spilling over the dam and flows down the Tullahan River. 
The La Mesa Ecopark is famous for its natural beauty and terrain, a favorite spot for family picnic, educational and entertainment programs, hiking and and biking.  

La Mesa is home of this rare osprey (Pandion haliaetus). Now and then you may see this regal bird patrolling the lake. I have seen it a number of times closely flying over Lagro. In my research it is a large raptor, reaching more than 60 cm (24 in) in length and 180 cm (71 in) across its wings. It is brown on the upper parts and predominantly greyish on the head and underparts. It is also called fish eagle, sea hawk, river hawk, or fish hawk, a diurnal, fish-eating bird of prey.

A tranquil pond below the spillway is an excellent fishing ground for enthusiasts. 
A biker negotiates a wooden bridge.

Only with the heart that one can see rightly.*
       On-the-spot Composition at the La Mesa Eco Park
                              by Dr Abe V Rotor 2012

How fleeting time through the generations passed,
     The lake once full, Narcissus idly on its shore,
Waits the nymph Echo passionately in vain ‘til cast,
     Hushing the trees, crying for Narcissus no more.       

If love is blind and lovers cannot see, so with beauty;
     In Song to Celia’s drink to me only with thine eyes
Makes one sober and blind, bathed in prodigious plenty;
     The heart no longer spoken of the soul soon dies.  

Tragedies from wastefulness and indifference tell us
     Often late when the wrath of our own making
Strikes in our sleep and the young innocents.  Aghast!
     Listen, listen to the Four Horsemen thundering. 

* “It is only with the heart that one can see rightly; what is essential is invisible to the eye.” – Antoine de Saint-Exupery, The Little Prince

-------------------------------------
Advocacy and Citizens' Action
  1. Use water wisely, limit consumption.
  2. Plant trees, support the Greening Movement. 
  3. Report illegal activities in the reservoir and watershed such as kaingin.
  4. Support the move to close permanently the Payatas landfill. 
  5. Strongly recommend reduction of water bill through Congress, local government leaders,  civic and church organizations.
  6. Reduce pollution, do not burn plastic.  Plastic emits DIOXIN, the most poisonous man-made substance that can be carried by wind and rain.which may find its way to our water supply. 
  7. For those near and around the watersheds of the system, make your backyard an "extension of the watershed," and a wildlife sanctuary, too.    
  8. Strongly support the "Save the Angat Dam" before anything catastrophic happens. 
  9. Love Nature, take time out from office school and work. Develop Reverence for life a personal philosophy.
  10. Enjoin the family, church, and community in ensuring every citizen the right for clean, available and affordable water, as embodied in the Declaration of Human Rights by the United Nations.~     
Out of 101 million Filipinos, nine million rely on unimproved, unsafe and unsustainable water sources and 19 million lack access to improved sanitation. (Water.Org Internet)
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This article is a reprint of the same title from this Blog, published in observance of the UN World Water Day March 22, 2016, This is an urgent call to conserve water as the levels of our dams are now at critical levels.

La Mesa Dam - Heart of the Angat-Ipo-La Mesa Water System was published in Greater Lagro Gazette 2016. by AV Rotor

Presented as lesson on the former Paaralang Bayan sa Himpapawid 738 DZRB AM, 8 to 9 evening class, Monday to Friday with Ms Melly C Tenorio and Miss Grace Velasco.  Visit  avrotor.blogspot.com Living with Nature - School on Blog.