Environment & Biodiversity MCQs

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The Wildlife Institute of India which carries out wildlife research in areas of study like Biodiversity, Endangered Species, Wildlife Management, etc was established in 1982. The institute is based in Dehradun, India

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Global warming is defined as the average increase of Earth’s temperature due to natural as well as human induced reasons. Global warming increases the average temperature of the Earth resulting in the melting of ice caps.

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Some of the advantages of Bio-Energy are as follows:
1. It is capital efficient.
2. It has high energy generation potential.
3. It has significant carbon emission reduction potential.
4. It is helpful in wasteland regeneration.

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The lakes which have low primary productivity as a result of low nutrient content are known as Oligotrophic Lake. These lakes have very low algal production therefore they often have very clear waters, with high drinking-water quality.

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Lichens are used as air pollution indicators, especially of the concentration of Sulphur dioxide in the atmosphere. If air is very badly polluted with sulphur dioxide there may be no lichens present, just green algae may be found. If the air is clean, shrubby, hairy and leafy lichens become abundant.

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Waterborne diseases are conditions caused by pathogenic micro-organisms that are transmitted in water as Cholera and Typhoid. Cholera is an infection of the small intestine by some strains of the bacterium Vibrio cholerae. Typhoid fever is caused by bacterium Salmonella Typhi.

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As non-biodegradable wastes like plastic bags, glass bottles, etc., cannot be broken down by decomposers, their disposal poses a big problem. Non-biodegradable wastes can be managed by practicing the concept of 3R— Reduce, Reuse, and Recycle.

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Old compact fluorescent lamp (CFL) bulbs lead to mercury pollution. According to the U.S. Environmental Protection Agency, common CFL bulbs contain 3-5 milligrams (mg) of mercury. CFLs, like all fluorescent lamps, contain mercury as a vapor inside the glass. Mercury (Hg) is a heavy metal that exists in several forms. Human contact with mercury, in any form, can produce toxic effects if the dose is high enough.

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The glorious Pin Valley National Park is located in the cold desert area of Lahaul and Spiti in Himachal Predesh and is home to more than 20 species of animals and birds, including the endangered Snow Leopard. Wildly furious but majestic Pin River flows right through it. The park is located in the desert habitat of the Spiti Valley, within the Cold Desert Biosphere Reserve, in the Himalayas region.

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The Iguaçu National Park is a World Heritage Site straddling the borders of Brazil and Argentina. This locale is famous for the panoramic Iguaçu Falls, consisting of about 275 individual falls, spanning 2,700 meters. Most importantly, the park serves as a sanctuary for numerous rare animals like jaguars, ocelots, and jaguarundis. The phenomenal waterfall isn’t only a top tourist attraction but also an important habitat for species like the great dusky swifts. Proclaimed a World Heritage Site by UNESCO in 1984, the park exemplifies global importance in wildlife conservation.