Waec Agricultural Science 2005 Past Questions and Answers

Question 26:

• WAEC 2005

The by-product in plant photosynthesis is

A. Carbondioxide
B. Carbohydrate
C. Hydrogen
D. Oxygen

Question 27:

• WAEC 2005

Which of the following reasons explain why fertilizers are added to soils?

A. Prevention of erosion
B. Increasing the organic matter content
C. Increasing the water retention capacity
D. Increasing the nutrient level

Question 28:

• WAEC 2005

A crop which is usually propagated sexually is

A. Banana
B. Pineapple
C. Cowpea
D. Ginger

Question 29:

• WAEC 2005

Transplanting is best carried out in the evening because

A. It allows for greater plant respiration
B. Roots show positive geotropism
C. Moisture losses are low during cold waether
D. Plnts grow faster in the dark

Question 30:

• WAEC 2005

Some cassava tubers are poisonous to non-ruminant because they contain

A. Hydrochloric acid
B. Hydrocyanic acid
C. Sodium chloride
D. Sodium hydroxide