Environmental Studies MCQ (Multiple Choice Questions)

By Aina Parasher|Updated : August 30th, 2022

Environmental Studies MCQ with answers is provided here for candidates who are actively preparing for the GATE exam 2023 and other related competitive exams. An insight into the types of questions to be expected in the tests can be quickly obtained from Environmental Studies MCQs.

Solving objective-based Environmental Studies MCQs and providing solutions will help students better understand the GATE Environmental Studies and Engineering syllabus at hand. On the basis of the most recent exam patterns, we have offered some specifically chosen questions below. Each of the Environmental Studies MCQs listed in this article are important and should be answered in depth.

Table of Content

Environmental Studies MCQ 1

Which layer of the atmosphere contains the ozone layer necessary for UV (ultraviolet) light absorption?

  1. Stratosphere
  2. Troposphere
  3. Mesosphere
  4. None of these

Answer: A. Stratosphere

Explanation: A part of the earth's atmosphere is called the stratosphere. UV light in the stratosphere is absorbed by the ozone present.

Environmental Studies MCQ 2

What is the largest source of the world's commercial energy consumption?

  1. Coal
  2. Oil
  3. Natural gas
  4. Nuclear

Answer: B. Oil

Explanation: Around the beginning of the twentieth century, coal dominated energy consumption. However, oil is now the main source of commercial energy consumption. It makes up about 39%.

Environmental Studies MCQ 3

How many biodiversity hotspots are there?

  1. 28
  2. 18
  3. 32
  4. 36

Answer: D. 36

Explanation: Currently, 36 biodiversity hotspots are known in the world. A region must satisfy two strict requirements in order to be considered a biodiversity hotspot: contain at least 1,500 vascular plant species that are unique to Earth and have lost the majority of their native vegetation by at least 70%.

Environmental Studies MCQ 4

The objective of Environmental studies is?

  1. Raising awareness of environmental issues
  2. To promote ecologically responsible conduct
  3. Establish a society that values environmental ethics.
  4. All of the above

Answer: D. All of the above

Explanation: The following are the goals of environmental studies: Raising awareness of environmental issues, promoting ecologically responsible conduct, and establishing a society that values environmental ethics.

Environmental Studies MCQ 5

Which two forms of alcohol are included in biofuels?

  1. Methanol and Ethanol
  2. Propanol and Ethanol
  3. Propanol and Methanol
  4. None of these

Answer: A. Methanol and Ethanol

Explanation: Both methanol and ethanol can be produced using biomass, fossil fuels, or perhaps the simplest combination of carbon dioxide and water.

Environmental Studies MCQ 6

Which of the following non-metallic minerals are essential?

  1. Marble, limestone, and granite
  2. Platinum, silver, and gold
  3. Coal, clay, cement, silica
  4. Iron, aluminium, zinc, and copper

Answer: C. Coal, clay, cement, silica

Explanation: Non-metallic minerals are important to many industries despite lacking metallic qualities including high thermic and electric conductivity, lustre, rigidity, and malleability.

Environmental Studies MCQ 7

Which of the following natural disasters occurs frequently?

  1. Floods
  2. Earthquake
  3. Drought
  4. Tsunami

Answer: A. Floods

Explanation: Floods are the most common sort of natural disaster, which happen when an excess of water submerges normally dry ground.

Environmental Studies MCQ 8

The atmosphere consists of 79% Nitrogen and 21% Oxygen by?

  1. Weight
  2. Volume
  3. Density
  4. All of these

Answer: B. Volume

Explanation: 21 per cent oxygen and 79 per cent nitrogen make up the atmosphere's volume, whereas 23.2 per cent oxygen and 76.8 per cent nitrogen make up its weight.

Environmental Studies MCQ 9

What type of human activity can lower the atmospheric oxygen content?

  1. Deforestation
  2. Hunting
  3. Mining
  4. None of the above

Answer: A. Deforestation

Explanation: Deforestation is the practice of cutting down trees for economic gain. The loss of trees and plants has a negative impact on oxygen levels. Deforestation thereby lowers the atmospheric oxygen concentration.

Environmental Studies MCQ 10

What is Sustainable Development?

  1. Balancing current requirements with those of the future.
  2. The advancement of humankind.
  3. A balance between human wants and the planet's capacity to supply resources.
  4. All the above.

Answer: C. Balance between human wants and the planet's capacity to supply resources.

Explanation: Sustainable development means maintaining the balance between human wants and the planet's capacity to supply resources.


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