A high population density means a large number of
persons in relation to availible in nature resources
persons per unit area
workers per unit area
persons over a large area
urban dwellers
Correct answer is B
No explanation has been provided for this answer.
All the following are important in the environmental balance except the
hydrological cycles
nitrogen cycle
food chain
oxygen cycle
carbon cycle
Correct answer is C
No explanation has been provided for this answer.
The high concentration of people in the Philippines Island is mainly due to the
abundant water supply for irrigation
adequate water supply for industries
rich volcanic soils
fertile alluvial soil
cool temperate climate
Correct answer is D
No explanation has been provided for this answer.
All the following resources is renewable?
Petroleum
Peat
Coal
Hydro-electricity
Natural gas
Correct answer is D
No explanation has been provided for this answer.
Plants which manufacture food from simple inorganic substances are called
heterotrophs
autotrophs
photosynthetics
decomposers
microbes
Correct answer is B
No explanation has been provided for this answer.