Waec Government Past Questions and Answers

Question 421:

• WAEC 1993

Air pollution may cause

A. A balanced energy system in the atmosphere
B. Acid rain formation
C. Increased photosynthesis
D. Increased evaporation
E. A high fertility rate in a country

Question 422:

• WAEC 1993

The relationship between the component of the ecosystem can be describes as

A. Inter-dependent
B. Multi-dimensional
C. Saprophytic
D. Parastic
E. Static

Question 423:

• WAEC 1993

An environmental balance is best maintained where

A. The fauna is undisturbed
B. Re-afforestation efforts are encouraged
C. There is much pressure on the land
D. Man's inflence is almost absent
E. Conservation efforts are unorganised

Question 424:

• WAEC 1993

Arid regions have a great potential for

A. Thermal energy
B. Solar energy
C. H.E.P
D. Unclear energy
E. Chemical energy

Question 425:

• WAEC 1993

Most conservation efforts are aimed at

A. Proteching wild life only
B. Protecting forest reserves from bush burning
C. Protecting renewable and non-renewable resources
D. Controlling the discharge of industrial effluence
E. Improving re-afforestation and irrigation methods