The major advantage of human power over all other sources of power is man's

A. normal power output of 75 watts per day

B. ability to work in any climatic condition

C. intelligence to control work

D. strength when at work

Which of the following is a function of the hopper of a grain sheller?

A. rubbing cobs against one another

B. receiving maize cobs to be shelled

C. separating chaff from the grains

D. drying shelled maize grains

The amount of planting material needed for a given area of land is known as

A. seed rate

B. plant population

C. seed volume

D. plant density

Cotton can thrive well in the mangrove areas if

A. appropriate fertilizer is applied to the soil

B. sunshine is lower in intensity

C. land is sufficiently drained

D. white flies are controlled

Legumes that produce edible seeds are called

A. pulses

B. spices

C. grains

D. cereals

When sugarcane is allowed to flower before harvesting, the

A. sucrose content is reduced

B. pith is formed

C. tissue will turn red

D. cane will rot

In a laboratory analysis of maize grains, the following results were obtained:
I. the dry matter content of 80 percent made up of 30.0 parts carbohydrate,3.3 parts ash, 13.8 parts fibre and 1.7 parts protein.
II. the remainder of the dry matter is oil. What is the percentage of oil in the dry matter?

A. 31.2

B. 39.0

C. 48.8

D. 64.0

The practice of cutting only matured forest trees and allowing other young ones to grow is known as

A. regeneration

B. afforestation

C. deforestation

D. selectiv exploitation

Pennisetum purpureum is the botanical name for

A. gamba grass

B. carpet grass

C. bahama grass

D. elephant grass

Which of the following groups of organisms cause the greatest damage to stored grains?

A. insects

B. birds

C. viruses

D. fungi