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Environment pollution - Free MCQ Practice Test with solutions, SSC CGL


MCQ Practice Test & Solutions: Test: Environment pollution (10 Questions)

You can prepare effectively for SSC CGL SSC CGL Tier 2 - Study Material, Online Tests, Previous Year with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Environment pollution". These 10 questions have been designed by the experts with the latest curriculum of SSC CGL 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

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Test: Environment pollution - Question 1

What is the definition of pollutants mentioned in the introduction?

Detailed Solution: Question 1

Pollutants are defined as an addition or excessive addition of certain materials to the physical environment, making it less fit or unfit for life. This definition highlights the detrimental impact of pollutants on the natural quality of the environment.

Test: Environment pollution - Question 2

What is the primary greenhouse gas mentioned in the text?

Detailed Solution: Question 2

Carbon dioxide (CO2) is mentioned as the principal greenhouse gas. Understanding the major greenhouse gases is essential for addressing issues related to climate change and global warming.

Test: Environment pollution - Question 3

How are primary pollutants different from secondary pollutants?

Detailed Solution: Question 3

Primary pollutants, such as DDT and plastic, persist in the form they are added to the environment, while secondary pollutants, like peroxyacetyl nitrate (PAN), are formed by the interaction among primary pollutants. Understanding this distinction is crucial for analyzing environmental impacts.

Test: Environment pollution - Question 4

Which of the following is the primary source of pollutants that contribute to the formation of ground-level ozone?

Detailed Solution: Question 4

Ground-level ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) react in sunlight. Among human-made sources, vehicle emissions are the largest contributor, as they release significant amounts of NOx and VOCs from fuel combustion.

While industrial emissions and biomass burning also contribute, transportation sources—especially cars, trucks, and buses—are the dominant cause in urban areas. Natural sources (like wildfires or vegetation) play a role but are not the primary driver of ozone pollution in most cases.

Test: Environment pollution - Question 5

Which air pollutant can cause smog and acid rain?

Detailed Solution: Question 5

Sulphur dioxide (SO2) is a major contributor to smog and acid rain. Recognizing the pollutants responsible for specific environmental issues aids in developing effective pollution control measures.

Test: Environment pollution - Question 6

Which of the following is an example of a qualitative pollutant?

Detailed Solution: Question 6

Qualitative pollutants are man-made and do not occur in nature. Fungicides, herbicides, and DDT fall into this category. Recognizing examples helps in identifying pollutants that require specific management strategies.

Test: Environment pollution - Question 7

What water remediation technique involves the uptake of contaminants by plant roots?

Detailed Solution: Question 7

Rhizofiltration is a water remediation technique involving the uptake of contaminants by plant roots. Recognizing different remediation methods contributes to effective environmental management.

Test: Environment pollution - Question 8

Which gas, emitted naturally by the soil, can cause lung cancers when confined inside houses?

Detailed Solution: Question 8

Radon is a naturally emitted gas that, when confined inside houses, can cause lung cancers. Identifying health risks associated with specific pollutants is essential for public awareness.

Test: Environment pollution - Question 9

What is the primary recommendation for noise levels in a residential area according to the Noise Pollution (Control and Regulation) Rules, 2000?

Detailed Solution: Question 9

The recommended noise levels in a residential area according to the Noise Pollution (Control and Regulation) Rules, 2000, are 55 dB to 45 dB. Understanding these standards helps in managing and controlling noise pollution in different areas.

Test: Environment pollution - Question 10

What is the term for the process of decomposition of organic matter in water by microorganisms using oxygen?

Detailed Solution: Question 10

Putrescibility is the process of decomposition of organic matter in water by microorganisms using oxygen. Understanding terms related to water pollution and remediation processes is essential for effective environmental science knowledge.

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