Waec Agricultural Science 2017 Past Questions and Answers

Question 16:

• WAEC 2017

Which of the following statements is not correct about soil texture?

A. Soils with fine particles have higher water holding capacity than coarse soils
B. Fine-textured soils are warm soils and coarse-textured soils are cool soils
C. The effect of leaching in coarse-textured soils is greater than that in fine-textured soils
D. Fine-textured soils have higher nutrient holding capacity than coarse-textured soils.

Question 17:

• WAEC 2017

Inhibition of root and fruit formation are deficiency symptoms of

A. Iron
B. Nitrogen
C. Chlorine
D. Phosphorus

Question 18:

• WAEC 2017

In the carbon cycle, carbon dioxide is used by crops for

A. Photosynthesis
B. Transpiration
C. Decomposition
D. Respiration

Question 19:

• WAEC 2017

Flood irrigation is used for the cultivation of

A. Water melon
B. Swamp rice
C. Oil palm
D. Coconut

Question 20:

• WAEC 2017

The presence of excess water in the colloids of soil particles is known as

A. Drainage
B. Waterlogging
C. Irrigation
D. Leaching