Which of the following in the lower atmosphere is of little use to man,plants and animals?
carbon dioxide
nitrogen
oxygen
argon
Correct answer is D
No explanation has been provided for this answer.
The acacia tree is commonly found in the
coniferous forest
mediterranean lands
savannah lands
mangroove forest
Correct answer is C
No explanation has been provided for this answer.
Air pollution is caused by all the following except
evapo-transpiration
fumes motor vehicles
discharge of gasses from factories
volcanic cruptions
Correct answer is A
No explanation has been provided for this answer.
Which of the following is a warm ocean current?
the mozambique current
the californian current
the benguela current
the west wind drift
Correct answer is A
No explanation has been provided for this answer.
Desert areas experience high daily range of temperature because
they are generally low-lying
the sky is cloudless
they experience very high atmospheric pressure
the winds blow off-shore at night
Correct answer is B
No explanation has been provided for this answer.