Which of the following rocks is not formed from pre-existing rocks?
Limestone
Granite
Shale
Marble
Correct answer is B
No explanation has been provided for this answer.
The following processes in soil formation are caused by biotic factors except
Bacterial decomposition of plants
Soil mixing and turning by earthworms
Burrowing of rodents
Soil disintegration by dehydration
Correct answer is D
No explanation has been provided for this answer.
The natural grasslands of West Africa are generally located in the
Rain forest
Guinea savanna
Mangroves
Equatorial belts
Correct answer is B
No explanation has been provided for this answer.
The use of land for agricultural purpose involves the following except
Livestock grazing
Fish farming
Road construction
Crop production
Correct answer is C
No explanation has been provided for this answer.
The practice of growth both food and forage crops simultaneously on the same piece of land is called
Pastoral farming
Ley farming
Crop rotation
Continuous cropping
Correct answer is B
No explanation has been provided for this answer.