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๐ŸŒฟ Environment & Ecology MCQ Questions

๐Ÿ“Š 31 Questions ๐ŸŽฏ UPSC ๐ŸŽฏ SSC ๐ŸŽฏ Forest Services โœ… Answers & Explanations

Practice Environment & Ecology MCQ questions with answers and detailed explanations. Ecology, Biodiversity, Climate & Conservation

1
Which of the following types of ecosystems is characterized by a high level of species diversity?
Medium
๐Ÿ’ก Explanation
Tropical rainforests are characterized by a high level of species diversity, with a vast array of plant and animal species, including many that are found nowhere else on Earth.
2
What is the term used for the process of plants releasing oxygen into the atmosphere?
Easy
๐Ÿ’ก Explanation
Photosynthesis refers to the process by which plants release oxygen into the atmosphere, often through the conversion of sunlight into chemical energy.
3
Which of the following pollutants is a major contributor to water pollution in India?
Medium
๐Ÿ’ก Explanation
Industrial chemicals are a major contributor to water pollution in India, with significant impacts on human health and the environment.
4
What is the term used for the amount of waste that is recycled or reused?
Easy
๐Ÿ’ก Explanation
Waste recycling refers to the process of reusing or recycling waste materials, which can help reduce waste disposal and environmental impacts.
5
Which of the following types of ecosystems is characterized by a high level of human impact?
Medium
๐Ÿ’ก Explanation
Urban ecosystems are characterized by a high level of human impact, with significant impacts on the environment and human health.
6
What is the term used for the process of water being stored in plants?
Easy
๐Ÿ’ก Explanation
Transpiration refers to the process by which water is stored in plants, often through the absorption of water from the soil.
7
Which of the following species is an example of a threatened species in the Himalayas?
Medium
๐Ÿ’ก Explanation
The snow leopard, red panda, and Asiatic black bear are all threatened species in the Himalayas, with declining populations due to habitat loss and human-wildlife conflict.
8
What is the term used for the process of soil formation through the addition of organic matter?
Easy
๐Ÿ’ก Explanation
Soil enrichment refers to the process by which soil is formed through the addition of organic matter, such as decaying plants and animals.
9
Which of the following pollutants is a major contributor to air pollution in India?
Medium
๐Ÿ’ก Explanation
Particulate matter is a major contributor to air pollution in India, with significant impacts on human health and the environment.
10
Which of the following types of ecosystems is characterized by a lack of vegetation?
Medium
๐Ÿ’ก Explanation
Desert ecosystems are characterized by a lack of vegetation, with limited plant growth due to extreme temperatures and low rainfall.
11
What is the term used for the process of plants releasing nutrients into the environment?
Easy
๐Ÿ’ก Explanation
Nutrient cycling refers to the process by which plants release nutrients into the environment, often through decomposition or excretion.
12
Which of the following species is an example of a threatened species in India?
Medium
๐Ÿ’ก Explanation
The Bengal tiger, Asiatic lion, and Indian rhinoceros are all threatened species in India, with declining populations due to habitat loss and human-wildlife conflict.
13
What is the term used for the process of water being stored in underground aquifers?
Easy
๐Ÿ’ก Explanation
Groundwater recharge refers to the process by which water is stored in underground aquifers, often through infiltration of precipitation or surface water.
14
Which of the following types of waste is a major contributor to pollution in urban areas?
Medium
๐Ÿ’ก Explanation
Domestic waste is a major contributor to pollution in urban areas, with significant impacts on human health and the environment.
15
What is the term used for the amount of waste generated by a given population?
Easy
๐Ÿ’ก Explanation
Waste generation refers to the amount of waste produced by a given population, which can have significant impacts on the environment.
16
Which of the following species is an example of a migratory species in India?
Medium
๐Ÿ’ก Explanation
The bar-headed goose is a migratory species in India, with populations that migrate between summer and winter habitats in the Himalayas.
17
What is the term used for the process of soil formation through the weathering of rocks?
Easy
๐Ÿ’ก Explanation
Soil formation refers to the process by which soil is created through the weathering of rocks, often over thousands of years.
18
Which of the following types of pollution is caused by the release of chemicals into the environment?
Medium
๐Ÿ’ก Explanation
Chemical pollution refers to the release of chemicals into the environment, which can have devastating effects on ecosystems and human health.
19
What is the term used for the movement of water from the land to the atmosphere?
Easy
๐Ÿ’ก Explanation
Evaporation refers to the process by which water moves from the land to the atmosphere, often in the form of water vapor.
20
Which of the following species is an example of a keystone species in a given ecosystem?
Medium
๐Ÿ’ก Explanation
Lions are often considered keystone species in their ecosystems, playing a crucial role in maintaining the balance of their environments.

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