An example of a piercing and sucking insect-pest of crops is a

A. mealy bug

B. grasshopper

C. weevil

D. termite

Calculate the number of yam setts planted at a spacing of 1.0m by 1.0m on a hectare of land

A. 1,000 setts

B. 2,500 setts

C. 5, 000 setts

D. 10,000 setts

If rows are spaced 1.0m apart with one plant per stand, determine the spacing between stands in order to obtain a plant population of 40,000/ha

A. 0.25m

B. 0.40m

C. 0.50m

D. 1.00m

Some plants are suitable for decorating living rooms because of their

A. ability to endure low light intensity

B. low respiration rate

C. ability to retain water

D. low resistance to disease

Cappling and staking are important cultural practices in the cultivation of

A. sweet potatoes

B. tomatoes

C. yams

D. groundnuts

An important function of mulching is that it

A. increases soil temperature

B. provides soil with nutrients

C. conserves moisture in the soil

D. increases rate of evaporation

The removal of shealth on maize cob is referred to as

A. winnowing

B. shelling

C. dehusking

D. milling

The removal of sheath on maize cob is referred to as

A. winnowing

B. shelling

C. dehusking

D. milling

Which of the following sequences describes the steps in making hay?

A. Cut, dry and bale

B. Dry, ferment and bale

C. Cut, wilt and bale

D. Bale, dry and cut

One disadvantage of using bamboo troughs water for poultry is that they

A. can be chewed up the birds

B. are susceptible to algal growth

C. break easily when they fall

D. contaminate the water put in them