Waec Agricultural Science 2012 Past Questions and Answers

Question 6:

• WAEC 2012

Termites are useful in agriculture because they

A. Help control plant population
B. Increase soil moisture
C. Improve soil aeration
D. Regulate soil temperature

Question 7:

• WAEC 2012

A fresh soil sample of mass 180 g had a mass of 120 g after oven-drying. Determine the percentage water content of the soil.

A. 40.4%
B. 38.3%
C. 35.3%
D. 33.3%

Question 8:

• WAEC 2012

The earthworm is important to the farmer because it

A. Improves soil texture
B. Destroys soil pathogens
C. Checks soil erosion
D. Improves soil structure

Question 9:

• WAEC 2012

The soil water that is readily available for absorption by plant roots is called

A. Capillary water
B. Gravitational water
C. Hygroscopic water
D. Superfluous water

Question 10:

• WAEC 2012

Farmers practice mixed farming because they can

A. Easily secure loan to expand their farms
B. Specialize in either the growing of crops or rearing of animals
C. Use the manure from the animals to fertilize their crops
D. Easily control pests and diseases on their farms