One of the soil- related problems of irrigation in the savannah region is increasing?
salinization
erosion
desiccation
exhaustion
Correct answer is D
No explanation has been provided for this answer.
The most critical cause of desertification in Nigeria is?
excessively high temperatures
extremely low rainfall
environment pollution
excessive pressure of land use
Correct answer is D
No explanation has been provided for this answer.
The main process of soil formation in the cool temperate continental grasslands of the world is?
calcification
salinization
ferrallitization
podzolization
no option indicated
Correct answer is A
No explanation has been provided for this answer.
The fertility of the soil in a typical tropical rainforest is maintained by the?
abundant sunshine and rainfall
wide variety of animals
abundant supply of litter
relatively cool micro-climate
Correct answer is C
No explanation has been provided for this answer.
A tree unique to the tropical Monsoon climate is the?
fir
oil palm
teak
encalyptus
Correct answer is C
No explanation has been provided for this answer.