Chemistry-Pollution of Air and Water [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 6 of 50

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Question 1

Pollution of Air and Water
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Question

MCQ▾

Which of the following processes occur in the troposphere?

Choices

Choice (4)Response
a.Acidrain
b.Greenhouse effect
c.Photosynthesis
d.Combustion

Question 2

Pollution of Air and Water
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Question

MCQ▾

The emission of sulphur dioxide into the atmosphere causes?

Choices

Choice (4)Response
a.Global warming
b.Eutrophication
c.Acid rain
d.Respiratory problems

Question 3

Pollution of Air and Water
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Question

MCQ▾

Freon is not recommended to be used in refrigerators because they?

Choices

Choice (4)Response
a.Affect human body
b.Deplete ozone
c.Increase temperature
d.Affect environment

Question 4

Pollution of Air and Water
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Question

MCQ▾

What is the side effect of air pollutant sulphur dioxide on human health?

Choices

Choice (4)Response
a.Harms the skin and lungs
b.Effects the heart and the liver
c.Mixer with blood and prevents it from carrying oxygen
d.Maker skin irritated

Question 5

Pollution of Air and Water
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Question

MCQ▾

What is the effect of carbon particles and smoke from factories?

Choices

Choice (4)Response
a.Decrease the rate of photosynthesis in plants
b.They increase the rate of respiration in plants
c.Decrease the rate of transpiration in plants
d.Increase the absorption of carbon dioxide by plants

Question 6

Pollution of Air and Water
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Question

MCQ▾

Which of the following pollutant involved and causes acid rains other than sulphur dioxide?

Choices

Choice (4)Response
a.
b.
c.
d.