an area set aside for the production of planting stocks for reforestation works, and/or tree plantation ventures

include all effect resulting from the presence of forest or brush upon climate, the water cycle, erosion, floods, and soil productivity

the ratio of the reflected to received solar radiation and is expressed in percentage.  It is affected by the nature of the surface being considered

a sediment deposited by streams and varying widely in particle size

plants with green chlorophyll which can manufacture its food with the aid of sunlight in the process of photosynthesis

group of animals that feed on other animals

Condensation is the process in which water vapor is changed to liquid water.  It takes place in the atmosphere and near the earth on solid surfaces.  It maybe in the form of fog, clouds, frost or dew.

Deciduous forest is a forest composed of trees that shed their leaves at some season of the year.  In tropical areas the trees lose their leaves during the hot season to conserve moisture

a forest consisting predominantly of cone-bearing trees with needle-shaped leaves, usually evergreen but some are deciduous

organisms of decay which release simple substances, plant leaves and other substance reusable by plant

the study of the relationships between living organisms, including humans, and their physical environment

the distance, usually in the leeward side where wind speed is effectively reduced before it accelerates again and is indicated as a multiple to the height

Erosion is the addition of material from the surface of the land by weathering, running water, moving ice, wind and mass movement.  It is the process by which soil and minerals are detached and transported by water, wind or gravity.

the net loss of water from a surface by means of change in state of water from liquid to vapor

non-chlorophyll organisms and dependent for its food in what the green plants have produced

the process by which water enters the soil surface

The downward movement of water from the surface through soil horizons

side where wind velocity starts to decelerate and usually with a downwind movement.

Macro-elements are elements that are needed in large amounts as nutrients for plant growth. Examples of macro-elements are N,P,K, Ca, Mg, S.

When the product of condensation falls on the ground or in contact with the surface it is called precipitation.  Forms of precipitation are the following: rain, drizzle, sleet, snow, hail, glaze, dew and fog.

a long barrier that protects fields in larger area or with bigger coverage and mostly tall trees of natural structures with inter-rows of shrubs

that portion of the gross rainfall, which, is caught by the vegetative canopy and reaches the ground by running down the trunk or stems of vegetation

that portion of the gross rainfall, which reaches the ground directly through spaces in the vegetative canopy and as a drip from, leaves and branches

that side of the shelterbelt or windbreak where the initial wind collision with the structure occurs or where the prevailing wind direction strike first

Butterflies belongs to what insect orders?

Which of the following are the characteristics of Arachnida?

The larva of flies is termed as:

Mouthparts which function biting, chewing and severing food.

Which of the type of insects wings which is used for balance and direction during flight?

Are the leathery forewings of insects.

The openings of the exoskeleton that allow for gas exchange and extend throughout the body

Insects which do not change in form in their metamorphosis.

It is the average number of eggs laid by female in its life.

In the S - shaped growth form, the population density increases in exponential or geometric          fashion.            

Chemical substances emitted by an individual to induce behavioural responses in other individuals of its own species.

It is the tendency among similar organisms to differ from each other to some degree.

It studies resemblances and differences among individual related by descent.

It is a type of allele that masks or hides expression of a recessive allele.

It is a process of cell divisions which reduces the number of chromosomes; is necessary for sexual reproduction.

is the mating of organisms closely related by ancestry

is a pollination by Bats.

is a pollination by beetles

is a form of grafting in which a single bud is used as the scion rather than a section of stem.

R. A. 3523 mandated the University of the   Philippines at Los Baños, College of Forestry (UPLB-CF) to carry out a formal programme on forest conservation through public information and education. The programme was launched on July 23, 1963

The first forestry school in the Philippines was established in

branch of Forestry which deals with the study of man and the forest and their   interrelationships so as to promote the     socio-economic well-being of uplanders  especially the poor forest occupants and at the        same time improve the quality of their  environment

the first approach to shifting cultivation

area delineated as           environmentally          sensitive such that significant       environmental impacts are expected if           certain types    of proposed projects or programs are located, developed or        implemented.

a process which   attempts to identify,    predicts and evaluate the impacts       of legislative proposals, policies,           programs, projects      and operational procedures on the biogeophysical     environment and on human health and well being

the document    issued by the DENR/EMB)    certifying that based on the representations of the proponent and the         preparers, as reviewed and validated by the EIA Review Committee, the           porposed project or     undertaking will not cause a significant negative             environmental impact.