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Environmental Science MCQs

Prepare effectively for environmental and general science sections in job and academic exams with our expertly compiled Environmental Science MCQs. These multiple-choice questions cover critical topics such as ecosystems, biodiversity, pollution, climate change, renewable energy, environmental laws, waste management, ozone depletion, greenhouse effect, water and air quality, sustainability, and natural resources. These MCQs are especially useful for candidates applying through PPSC, FPSC, CSS, NTS, SPSC, BPSC, KPSC, ETEA, AJKPSC, and other public testing commissions. Ideal for exams related to environmental officer posts, science education, forestry, and public health sectors.

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1 Environmental Science MCQs

What will decrease as a result of deforestation?

  • Soil erosion
  • Rainfall
  • Landslides
  • Soil fertility
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Correct Answer: B. Rainfall

Explanation:

Deforestation refers to the large-scale removal of trees and forests for human activities ... Read More Details

2 Environmental Science MCQs

Sedimentary rocks are formed by which natural process?

  • Lithification
  • Rejuvenation
  • Hydration
  • Peroxidation
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Correct Answer: A. Lithification

Explanation:

Sedimentary rocks are rocks that form from the accumulation and compaction of sediments ... Read More Details

3 Environmental Science MCQs

Which type of world climate has dry summers and wet winters?

  • Western European type
  • Mediterranean type
  • Equatorial type
  • Tundra type
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Correct Answer: B. Mediterranean type

Explanation:

The Mediterranean climate is a type of world climate that is defined by ... Read More Details

4 Environmental Science MCQs

The Earth’s surface and crust are constantly evolving due to which process?

  • Rotary cycle
  • Normal cycle
  • Rock cycle
  • Change cycle
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Correct Answer: C. Rock cycle

Explanation:

The Earth’s surface and crust are constantly changing due to a natural process ... Read More Details

5 Environmental Science MCQs

Mauna Loa is an example of which type of volcano?

  • Active volcano
  • Extinct volcano
  • Plateau in a volcanic region
  • None of the above
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Correct Answer: A. Active volcano

Explanation:

Mauna Loa is one of the most well-known volcanoes in the world, located ... Read More Details

6 Environmental Science MCQs

What is the main cause of earthquakes?

  • Landslide
  • Eruption of volcanoes
  • Movement of tectonic plates
  • All of these
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Correct Answer: D. All of these

Explanation:

Earthquakes are sudden vibrations or shaking of the Earth's surface caused by the ... Read More Details

7 Environmental Science MCQs

What types of materials are released from a volcano during an eruption?

  • Solid, liquid, and gaseous
  • Solid and liquid
  • Solid and gaseous
  • None of these
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Correct Answer: A. Solid, liquid, and gaseous

Explanation:

Volcanic eruptions are natural events where magma, gases, and other materials are expelled ... Read More Details

8 Environmental Science MCQs

Which type of clouds are the highest in the sky?

  • Cirrocumulus
  • Cirrus
  • Cirrostratus
  • All of these
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Correct Answer: D. All of these

Explanation:

Clouds are classified into different groups based on their altitude and appearance. The ... Read More Details

9 Environmental Science MCQs

What does a line on a map connecting points with the same atmospheric pressure represent?

  • Isobar
  • Isobath
  • Isohel
  • Isohyet
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Correct Answer: A. Isobar

Explanation:

A line on a map connecting points with the same atmospheric pressure is ... Read More Details

10 Environmental Science MCQs

Which instrument is used to determine the direction of cloud movement?

  • Nephoscope
  • Stethoscope
  • Metroscope
  • None of the above
0 Comments
Correct Answer: A. Nephoscope

Explanation:

A nephoscope is a specialized instrument used in meteorology to measure the direction ... Read More Details

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