Environmental Science MCQs

Question 1

Animals that feed only on plants are called

Accepted Answer

herbivores

Answer

detritivores

Answer

carnivores

Answer

omnivores

Question 2

The first trophic level in a food chain

Accepted Answer

Green Plants

Answer

Herbivores

Answer

Carnivores

Answer

Bacteria

Question 3

The inherent ability of organisms to reproduce and multiply is called

Accepted Answer

biotic potential

Answer

C value

Answer

carrying capacity

Answer

K value

Question 4

The effect of ozone depletion include

Accepted Answer

all the above

Answer

UV light reaches the earth

Answer

affect the climate

Answer

cause skin cancer

Question 5

The true statement about "green house effect" is that it is

Accepted Answer

caused only by CO2, CFC, CH4 and NO2 gases

Answer

caused by combination of many gases

Answer

caused by CO2

Answer

None of these

Question 6

UV radiations is injurious to plants because it

Accepted Answer

causes genetic changes

Answer

break phosphate bonds

Answer

increases respiration

Answer

causes dehydration

Question 7

_________ is the regulatory authority of quality in India.

Accepted Answer

CPCB

Answer

PCBC

Answer

CBCP

Answer

CPBC

Question 8

The temperature scale that sets freezing of pure water at 32o F:

Accepted Answer

Fahrenheit

Answer

Kelvin

Answer

Celsius

Answer

British

Question 9

The pollutant that causes hole in the ozone layer is

Accepted Answer

CFCs

Answer

SF6

Answer

nitrousoxide

Answer

PFCs