Test: Pollution Of Air And Water - 4


20 Questions MCQ Test Class 8 Science by VP Classes | Test: Pollution Of Air And Water - 4


Description
This mock test of Test: Pollution Of Air And Water - 4 for Class 8 helps you for every Class 8 entrance exam. This contains 20 Multiple Choice Questions for Class 8 Test: Pollution Of Air And Water - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Pollution Of Air And Water - 4 quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Pollution Of Air And Water - 4 exercise for a better result in the exam. You can find other Test: Pollution Of Air And Water - 4 extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.
QUESTION: 1

The Taj Mahal is being affected due to:

Solution:
QUESTION: 2

Highest percentage of air consists of:

Solution:
QUESTION: 3

Most polluted river in the world is:

Solution:
QUESTION: 4

Air pollution causes

Solution:

Pollution is known to cause and exacerbate a number of chronic respiratory diseases. The World Health Organisation has placed air pollution as the world’s largest environmental health risk factor. There has been recent publicity about the role for diet and anti-oxidants in mitigating the effects of pollution, and this review assesses the evidence for alterations in diet, including vitamin supplementation in abrogating the effects of pollution on asthma and other chronic respiratory diseases. 

QUESTION: 5

Green house gas is

Solution:

Green house gases that occur both naturally and from human activities include water vapour, carbon dioxide, methane, nitrous oxide and ozone. 

QUESTION: 6

The percentage of nitrogen in air is

Solution:
QUESTION: 7

Ganga Action Plan was launched to reduce the pollution levels in the

Solution:
QUESTION: 8

Which of these are responsible for water pollution?

Solution:
QUESTION: 9

 CNG is a

Solution:
QUESTION: 10

Chlorofluorocarbon is used in

Solution:

D is the correct option.Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants and Air conditioners.

QUESTION: 11

Ganga Action Plan aims to reduce cutting of trees.

Solution:
QUESTION: 12

 Corrosion of marble is also known as marble cancer.

Solution:

A is the correct option.The acids present in the acid rain react with the marble of monument and corrode it slowly. The slow corrosion (or eating up) of marble of a monument by acid rain is known as Marble cancer. ... These acids mix with rain and cause acid rain. This corrodes the marble of the monuments.

QUESTION: 13

Global warming is a serious threat for life on earth.

Solution:
QUESTION: 14

 Carbon monoxide is a green house gas.

Solution:
QUESTION: 15

 Potable water is translucent.

Solution:

Potable water is translucent. Water fit for drinking is potable water.

QUESTION: 16

Carbon monoxide reduces the oxygen, carrying capacity of the blood.

Solution:
QUESTION: 17

Acid rain corrodes the marble of monuments.

Solution:
QUESTION: 18

Acid rain does not affect the soil and plants.

Solution:
QUESTION: 19

Increasing levels of greenhouse gases like CO2 causes global warming.

Solution:
QUESTION: 20

Sun’s rays do not warm the earth’s surface.

Solution:

Related tests