Environment & Biodiversity MCQs

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The phases involved in Environment Impact Assessment process in India are as follows: Screening, Scoping, Baseline data collection, Impact prediction, Assessment of alternatives, delineation of mitigation measures and environmental impact statement, Public hearing, Environment Management Plan, Decision making and Monitoring the clearance conditions.

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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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Wildlife corridor or Green corridor is an area of habitat which connects wildlife populations separated by human activities. Wildlife corridors may be both natural or created. These corridors help animals that move between isolated patches on a daily basis and also those that migrate between habitats seasonally.

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The Aghanashini River forms its estuary in Kumta taluka of Uttara Kannada district, Karnataka. Uttara Kannada is a coastal district in Karnataka known for its estuaries and rivers draining into the Arabian Sea. The estuary is located specifically within this district’s geographical area.

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The three R’s of eco-friendly living are: Reduce, Reuse and Recycle. They all help to cut down on the amount of waste, we throw away. They conserve natural resources, landfill space and energy.

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Biological magnification is the increase in concentration of certain fat-soluble chemicals in successively higher trophic levels of a food chain or food web. In other words, as chemical compounds move up through the various links of a food chain by being consumed by different organisms, the toxic effect of these compounds is magnified. It plays a devastating role in certain types of pollution.

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If the environmental lapse rate is greater than – 5.5 K/km, then there is some small amount of vertical turbulence and the atmosphere is said to be stable. It is also referred to as being sub-adiabatic.

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A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range, contributing to the greenhouse effect. The essential greenhouse gases in the Earth’s atmosphere include:

• Water vapor
• Carbon dioxide
• Methane
• Nitrous oxide
• Ozone

Here, Nitrogen is not considered a greenhouse gas.

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Mylo is a leather-like material made from mycelium, the underground root structure of mushrooms. Mylo is a sustainable alternative to leather because it can be grown without polluting substances. It is also more sustainable than synthetic leathers, which are usually made from petroleum-derived inputs.
Mylo is grown in a controlled indoor environment. The growing process is designed to be low impact and takes less than two weeks. It emits fewer greenhouse gases and uses less water and resources than animal-based leather.
Mylo is 80% bio-based and is completely biodegradable and compostable. However, when extra durability is needed, the mushroom leather is reinforced with polyurethane, which decreases its biodegradability.

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The Great Barrier Reef, a UNESCO World Heritage Site, is the world’s largest coral reef system, spanning 2,300 kilometers and covering 344,400 square kilometers. It is home to 10% of the world’s fish species, 400 types of coral, and six of the seven species of marine turtles. The reef is composed of over 2,900 individual reefs and 900 islands, with the widest sections reaching up to 65 kilometers. It is visible from space and supports a diverse array of marine life, including whales, dolphins, and sharks. The reef has been listed as one of the Seven Natural Wonders of the World since 1997. Despite its natural beauty, the reef faces threats from climate change, coral bleaching, and pollution, with UNESCO recommending it for the In Danger list due to these impacts.