Which of the following sources of farm power is most flexible and adaptable to farm operations?
Animal power
Wind power
Human power
Solar power
Correct answer is C
No explanation has been provided for this answer.
Which of the following sources of water is least useful for irrigation purposes?
Sea
River
Lake
Borehole
Correct answer is A
No explanation has been provided for this answer.
When soils are poorly drained,
They dry up easily
They form hardpans
The air content of the soil is reduced
The rate of decomposition is accelerated
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not an effect of water-logging on crop production? it
Inhibits plant development
Encourages leaching
Inhibits the activities of micro organisms in the soil
Causes plant roots to wilt
Correct answer is D
No explanation has been provided for this answer.
Nitrogen is taken up by plant roots in the form of
Nitrate ion
Nitrite ion
Nitric acid
Nitrogen gas
Correct answer is A
No explanation has been provided for this answer.