Waec Agricultural Science 1992 Past Questions and Answers

Question 31:

• WAEC 1992

The correct sequence in preparing new land for cropping is usually

A. Stumping, laying out of farm, ridging and tiling
B. Laying out of farm, ridging, stumping and tilling
C. Tilling, stumping, laying out of farm
D. Ridging, laying out of farm, tilling and stumping
E. Laying out of farm, stumping, tilling and ridging.

Question 32:

• WAEC 1992

Which of the following methods would quickly provide a large harvest of oranges from a tree with desirable qualities?

A. Planting the seeds of the plant with the desirable qualities
B. Crossing orange trees with those of desirable qualities
C. Applying special fertilizer to the other citrus trees
D. Grafting a branch from the tree with desirable qualities to the stock of other citrus trees
E. Planting the stem cuttings of the orange tree with desirable qualities

Question 33:

• WAEC 1992

Which of the following is not an aim of improving crops?

A. Producing crops which are resistant to diseases and pests
B. Producing crops which are adapted to adverse weather conditions
C. Increasing yield by planting high yielding and vigorous varieties
D. Improving the qualities of farm produce
E. Improving mechanical method of harvesting crops.

Question 34:

• WAEC 1992

Which of the following is not a characteristic of a good pasture?

A. Ability to withstand extremes of climate and soil conditions
B. Ability to withstand competition from weeds or other forage crops
C. Ability to produce high quality fresh leaves
D. High palatability and nutritional content
E. Ability to provide mainly high quality carbohydrates.

Question 35:

• WAEC 1992

Feed carotene is usually converted into

A. Vitamin K
B. Vitamin E
C. Vitamin D
D. Vitamin B
E. Vitamin A