Rapid population growth is mainly the natural consequence of?
low fertility and morality
rapid economic development
high fertility with high morality
low morality with high fertility
Correct answer is D
No explanation has been provided for this answer.
Dense population mainly dependent on peasant farming is found in?
Witwatersrand in South Africa
the coastal areas of WestAfrica
the Rwanda-Burundi area
the Katanga District
Correct answer is B
No explanation has been provided for this answer.
One serious environmental hazard which may result from the destruction of the zone layer is?
flooding due to melting of snow
pollution of rain water
increase in atmospheric temperature
decrease in the quantity of oxygen in the atmosphere
Correct answer is C
No explanation has been provided for this answer.
Bilharzia
Dysentery
River blindness
Cholera
Correct answer is A
No explanation has been provided for this answer.
Nutrients lost by trees in leaf-fall can be re-used by the trees because the?
trees are renewable resources
nutrients circulate in the ecosystem
nutrients are inexhaustible
trees store nutrients
Correct answer is B
No explanation has been provided for this answer.