The ratio of registered births to the population of women of child-bearing age is known as the?
fertility rate
mortality rate
growth rate
morbidity rate
Correct answer is A
No explanation has been provided for this answer.
Which of the following factors discourages population concentration in area?
Grasslands
Frozen soils
Mineral deposit
Alluvial plains
Correct answer is B
No explanation has been provided for this answer.
Accelerated soil erosion result from a combination of?
bad farming practice and mulching
intensive cultivation and cover crops
bad farming practices and fertilizers
intensive cultivation and overgrazing
Correct answer is D
No explanation has been provided for this answer.
Global warming directly results in?
melting ice cap and rising sea level
corrion of roofing sheets
increasing in atmospheric pressure
population explosion and rapid urbanization
Correct answer is A
No explanation has been provided for this answer.
The major terrestrials ecosystems are often referred to as?
biomes
biomass
grasslands
boreal forests
Correct answer is A
No explanation has been provided for this answer.