Environmental Chemistry Test

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Environmental Chemistry Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

Which of these was an attempt by world governments to specifically address the problem of global warming?

A
The Kyoto Agreement

B
Agenda 21

C
The CITES Treaty

D
The Geneva Convention

Solution

The Kyoto Agreement was an attempt by world governments to specifically address the problems of global warming. Kyoto protocol is an international deal which guides all the countries to reduce the greenhouse gas emissions.
Question 2
1 / -0

Carbon dioxide and oxygen levels are maintained by:

A
Respiration

B
Photosynthesis and respiration

C
Photosynthesis

D
Perspiration

Solution

Carbon dioxide and oxygen levels are maintained by Photosynthesis by plants and respiration by organisms.
Question 3
1 / -0

The balance of carbon dioxide and oxygen has been upset by:

A
Excessive burning of fossil fuels

B
Large scale deforestation

C
Burning fossil fuels and deforestation

D
Increasing human population

Solution

The balance of carbon dioxide and oxygen has been upset by Burning fossil fuels and deforestation which causes release of excessive CO₂ and reduced O₂
Question 4
1 / -0

Deforestation is responsible for:

A
Diversification

B
Desertification

C
Eutrophication

D
Salinisation

Solution

Deforestation is responsible for desertification because without plants no organic matter is recycled in that soil and soil erosion is very frequent there.
Question 5
1 / -0

Carbon dioxide in the oceans can be used by:

A
Phytoplankton

B
Fish

C
Deep sea divers

D
Zooplankton

Solution

Carbon dioxide in the oceans can be used by Phytoplankton which are autotrophic components of plankton community.
Question 6
1 / -0

The ozone layer found high in the stratosphere:

A
Is capable of disintegrating fabric and rubber

B
Is toxic to plants

C
Can react with atmospheric pollutants to form smog

D
Protects against the sun's harmful UV rays

Solution

The ozone layer found high in the stratosphere Protects against the sun's harmful UV rays. It doesn't allow harmful ultraviolet and infrared radiations to enter the earth surface as they will cause skin diseases,cancer and eye problems.
Question 7
1 / -0

Holes in the ozone layer are thought to have been caused by:

A
CFC’s

B
Carbon dioxide

C
Methane

D
Space exploration

Solution

CFC’s causes hole in the ozone layer by reaction of Cl free radicals with ozone molecules and breaking the O₃ molecules into [O₂+ O].
Question 8
1 / -0

Which of the following gases is not a green house gas?

A
CO

B
CH₄

C
H₂O vapour

D
O₃

Solution

CO is not a green-house gas. Although it is highly fatal. It is indirectly a cause of global warming
Question 9
1 / -0

Photochemical smog occurs in warm, dry and sunny climate. Which of the following is not amongst the components of photochemical smog:

A
Unsaturated hydrocarbon

B
O₃

C
NO₂

D
SO₂

Solution

SO₂ is not a component of photochemical smog. Ozone and oxides of nitrogen are responsible for photochemical smog and make the atmosphere hazy.
Question 10
1 / -0

Which of the following statements is not true about classical smog?

A
Its main components are produced by the action of sunlight on emissions of automobiles and factories.

B
Produced in cold and humid climate

C
It contains compounds of reducing nature.

D
It contains smoke, fog and sulphur dioxide.

Solution

Classical smog main components are not produced by the action of sunlight on emissions of automobiles and factories. It is actually the photochemical smog.

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Re-Attempt Weekly Quiz Competition

Environmental Chemistry Test - 6

Result

Environmental Chemistry Test - 6

Score

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SHARING IS CARING

Question 1

The Kyoto Agreement

Agenda 21

The CITES Treaty

The Geneva Convention

Solution

Question 2

Respiration

Photosynthesis and respiration

Photosynthesis

Perspiration

Solution

Question 3

Excessive burning of fossil fuels

Large scale deforestation

Burning fossil fuels and deforestation

Increasing human population

Solution

Question 4

Diversification

Desertification

Eutrophication

Salinisation

Solution

Question 5

Phytoplankton

Fish

Deep sea divers

Zooplankton

Solution

Question 6

Is capable of disintegrating fabric and rubber

Is toxic to plants

Can react with atmospheric pollutants to form smog

Protects against the sun's harmful UV rays

Solution

Question 7

CFC’s

Carbon dioxide

Methane

Space exploration

Solution

Question 8

CO

CH4

H2O vapour

O3

Solution

Question 9

Unsaturated hydrocarbon

O3

NO2

SO2

Solution

Question 10

Its main components are produced by the action of sunlight on emissions of automobiles and factories.

Produced in cold and humid climate

It contains compounds of reducing nature.

It contains smoke, fog and sulphur dioxide.

Solution

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CH₄

H₂O vapour

O₃

O₃

NO₂

SO₂