Waec Agricultural Science 1994 Past Questions and Answers

Question 6:

• WAEC 1994

The response of crops to day-length is referred to as

A. Photoperiodism
B. Photosynthesis
C. Photogenesis
D. Venalization
E. Volatilisation

Question 7:

• WAEC 1994

Coal is an example of

A. Igneous rock
B. Metamorphic rock
C. Plutonic rock
D. Volcanic rock
E. Sedimentary rock

Question 8:

• WAEC 1994

What is the percentage of water content of a soil sample if the mass of fresh soil is 180 gm and mass of dried soil is 120 gram?

A. 45.5%
B. 40.4%
C. 38.3%
D. 35.3%
E. 33.3%

Question 9:

• WAEC 1994

Prolonged application of ammonium sulphate fertilizer on a given soil can lead to the

A. Decay of tuber and root crops
B. Increase in beneficial soil micro-organisms
C. Increase in soil acidity
D. Damage of soil structure
E. Increase in the alkalinity of soil

Question 10:

• WAEC 1994

Which of the following factors may be considered in adopting a particular method of irrigation?

A. Topography of the land
B. Characteristics of the soil
C. Type of farming system
D. Type of crops to be grown
E. Size of land to be irrigated