Free Sustainable Development 02 Practice Test - 12th Grade - Commerce 

Question 1

Phytoplanktons are producers of ___ .

A.

Producers of forest

B.

Producers of lakes

C.

Consumers of Ocean

D.

Omnivores

SOLUTION

Solution : B

Phytoplanktons are producers of lakes. 

Question 2

Define ecology. 

A.

The science that studies the evolution of life,

B.

Integrates both social and natural sciences to help us understand how the earth works

C.

The study of the relationships between organisms and their environment

D.

The study of the environment in the absence of humans

SOLUTION

Solution : C

Ecology is defined as the study of the relationships between organisms and their environment.

Question 3

The major cause of ozone depletion is due to which chemical?

A.

ChloroFluoroCarbons

B.

Polyphenols

C.

Dioxins

D.

Rayon

SOLUTION

Solution : A

The major cause of ozone depletion is due to ChloroFluoroCarbons.

Question 4

The legally binding international agreement to reduce Greenhouse gases by 5% 2012 is ___

A.

Vienna convention

B.

Montreal Protocol

C.

Kyoto Protocol

D.

None of the above

SOLUTION

Solution : C

The legally binding international agreement to reduce Greenhouse gases by 5% 2012 is Kyoto Protocol.

Question 5

“Ozone Hole” is a ___.

A.

Hole in the atmosphere

B.

Destruction of the ozone layer

C.

Hole in the hydrosphere

D.

Hole in the troposphere

SOLUTION

Solution : B

“Ozone Hole” is a destruction of the ozone layer.

Question 6

The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called ___ .

A.

air pollution

B.

water pollution

C.

soil pollution

D.

radioactive pollution

SOLUTION

Solution : A

The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called air pollution.

Question 7

Global warming is caused by___ .

A.

GHGs

B.

CFCs

C.

CH4

D.

NO2

SOLUTION

Solution : A

Global warming is caused by GHGs ( Green House Gases). 

Question 8

The problem of ozone depletion is caused by high levels of chlorine and bromine compounds in the ___ .

A.

Atmosphere

B.

Stratosphere

C.

Troposphere

D.

Mesosphere

SOLUTION

Solution : B

The problem of ozone depletion is caused by high levels of chlorine and bromine compounds in the stratosphere. 

Question 9

Greenhouse effect is caused by___ . 

A.

Increase in CO2

B.

Increase in O2

C.

Decrease in O2

D.

Decrease in CO2

SOLUTION

Solution : A

Greenhouse effect is caused by increase in CO2.

Question 10

___ is the poisonous gas leaked during Bhopal gas tragedy.

A.

MIC

B.

PVC

C.

Teflon

D.

Hydrogen Sulphide

SOLUTION

Solution : A

MIC ( Methyl Isocyanate ) is the poisonous gas leaked during Bhopal gas tragedy.

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