Winds in anticyclones differ from winds in cylones mainly because they

A. blow anticlockwisely in the northern hemisphere

B. blow outwards

C. blow inwrds

D. are affected by the earth's rotation

E. result in light rainfall

In Koppen's classification the first member of the system represents the

A. dry climate

B. warm temperate climate

C. tropical rainy climate

D. polar climate

E. tropical continental climate

A soil particle whose diameter is between 0.05mm and 2.00mm is classified as

A. clay

B. loam

C. sand

D. silt

E. gravel

The most predominant action in the first horizon of a soil profile is

A. illuviation

B. eluviation

C. deposition

D. sedimentation

E. transportation

Which of the following is the most important use of the natural vegetation in savanna regions?

A. Wildlife habitat

B. Grazing

C. Firewood

D. Lumbering

E. Hunting

An ecosystem has all the following characteristics except that it is

A. integrative

B. structured

C. a component

D. a system

E. a function

Plants which manufacture food from simple inorganic substances are called

A. heterotrophs

B. autotrophs

C. photosynthetics

D. decomposers

E. microbes

All the following resources is renewable?

A. Petroleum

B. Peat

C. Coal

D. Hydro-electricity

E. Natural gas

The high concentration of people in the Philippines Island is mainly due to the

A. abundant water supply for irrigation

B. adequate water supply for industries

C. rich volcanic soils

D. fertile alluvial soil

E. cool temperate climate

All the following are important in the environmental balance except the

A. hydrological cycles

B. nitrogen cycle

C. food chain

D. oxygen cycle

E. carbon cycle