Waec Agricultural Science 2020 Past Questions and Answers

Question 31:

• WAEC 2020

When a gene is expressed in the phenotype in a homoxygous or heterogous form, that gene is said to be?

A. Segregating
B. Recessive
C. Regeneration
D. Exploitation

Question 32:

• WAEC 2020

Crops which grow and mature within few weeks of their cultivation are called?

A. Annual crops
B. Ephemeral crops
C. Perennial crops
D. Biennial crops

Question 33:

• WAEC 2020

If the yield of cowpea is 750kg per hectare, calculate the yield of cowpea from a 20 hectare farm.

A. 7,500kg
B. 15,000kg
C. 22,500kg
D. 37,500kg

Question 34:

• WAEC 2020

Which of the following statements about threshing of rice are true?

I.Rice grains are separated from the panicle
II.Breakage of some grains could occur
III.The grains are polished

A. I and II Only
B. I and III Only
C. II and III Only
D. I, II and III

Question 35:

• WAEC 2020

An important reason for staking yam is to?

A. Expose the leaves to sunlight
B. Prevent water logging on the farm
C. Enhance the formation of leaves
D. Expose the flowers to pollination