Which of the following factors least effects population concentration in the North-east of USA?
Minerals resources
Climate
Employment opportunities
Accessibility
Flood
Correct answer is E
No explanation has been provided for this answer.
The best example of a non-renewable resource among the following is
water
man
minerals
air
vegetation
Correct answer is C
No explanation has been provided for this answer.
a permeable rock layer in which water is stored
a non-porous rock
an impermeable rock layer in a desert
an impervious and impermeable rock
a well-jointed rock layer
Correct answer is A
No explanation has been provided for this answer.
A state of inter-dependence within the ecosystem is best achieved where the components
compete with each other
are undisturbed
are controlled
are independent
are similar in nature
Correct answer is B
No explanation has been provided for this answer.
Desert encroachment can best be controlled by
erecting barriers
deforestation
overgrazing
slopewise cultivation
afforestation
Correct answer is E
No explanation has been provided for this answer.