Waec Agricultural Science 2010 Past Questions and Answers

Question 11:

• WAEC 2010

High temperature and pressure convert sandstone to

A. Basalt
B. Quartzite
C. Coal
D. Limestone

Question 12:

• WAEC 2010

Which of the following factors is both a physical and a chemical agent of rock weathering?

A. Temperature
B. Animal
C. Water
D. Oxygen

Question 13:

• WAEC 2010

Physical properties of clay soil include

A. Low porosity and low capillarity
B. High porosity and high capillarity
C. Low porosity and high capillarity
D. High porosity and low capillarity

Question 14:

• WAEC 2010

Streak disease of maize is caused by

A. Virus
B. Nematode
C. Fungus
D. Bacterium

Question 15:

• WAEC 2010

In the carbon cycle, atmospheric carbon dioxide is replenished by

A. Respiration
B. Transpiration
C. Lightening
D. Dentrification