100 Best Geography- Environment MCQs
Q17). Ecosystem has which of the following two components ?
a).Abiotic and biotic
b).Frogs and men
c).Animals and plants
d).None of these
Correct Answer:
Abiotic and biotic
Explaination:
Q18). Which of the following is a non polluting gas ?
a).Compressed natural gas
b).Liquefied petroleum gas
c).Both (A) and (B)
d).None of these
Correct Answer:
Compressed natural gas
Explaination:
Q19). The only phenomena in which heat can travel through the relative emptiness of space is
a).reflection
b).conduction
c).convection
d).radiation
Correct Answer:
radiation
Explaination:
Q20). Ozone depletion is mainly caused by
a).Carbon dioxide
b).Chlorofluorocarbons
c).Carbon monoxide
d).None of these
Correct Answer:
Chlorofluorocarbons
Explaination:
Q21). Which of the following is an important Greenhouse Gas ?
a).Carbon dioxide
b).Nitrogen
c).Carbon monoxide
d).None of these
Correct Answer:
Carbon dioxide
Explaination:
Q22). Bhopal gas tragedy was caused due to the leakage of
a).Chlorofluorocarbons
b).Methyl isocyanide gas
c).Methane gas
d).All of these
Correct Answer:
Methyl isocyanide gas
Explaination:
Q23). The Earth Summit was organised by
a).WHO
b).UNICEF
c).UNESCO
d).UNCED
Correct Answer:
UNCED
Explaination:
Q24). The main chemical responsible for ozone depletion is
a).PAN
b).Hydrocarbon
c).Freon
d).CFC
Correct Answer:
CFC
Explaination: