The area where UV radiations are intense is the……..
a) boreal forests
b) alpine tundra
c) alpine forests
d) arctic tundra
Explanation: Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate.
10% decrease in the ozone layer would cause melanoma skin cancer worldwide annually…….
a) 10000
b) 100000
c) 45000
d) 4500
Environment Resources and their Depletion:
Natural resources are of………kinds.
a) two
b) three
c) four
d) five
Explanation: 1. Renewable and 2. Non-renewable resources
Which
of the following resources are non-renewable?
a) fossil fuels, oil, coal and natural gas
b) diamond and iron ore
c) minerals, gold, silver and rocks
d) all of these
Which of the following are renewable resources?
a) animals, insects and plants
b) water, grass and trees
c) solar and wind energy
d) all of these
Explanation: water is also renewable but only 3% is actually is a useable state.
