Environment & Biodiversity MCQs

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A chronic occupational lung disease contracted by the prolonged breathing of coal mine dust. The silica and carbon in the coal dust cause black lung disease. About one of every 20 miners studied in the US has X-ray evidence of black lung disease, a form of pneumoconiosis. In its early stages, called simple pneumoconiosis, the disease does not prevent the miner from working or carrying on most normal activities. In some miners, the disease never becomes more severe. Pneumoconiosis is not reversible. There is no specific treatment. Black lung disease has gone by many names, including anthracosis, black lung, black spittle, coal worker’s pneumoconiosis, miner’s asthma, and silicosis.

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Pyramid of energy is never inverted.

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Harike Wetland and the lake were formed by constructing the head works across the Sutlej river, in 1953.

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The Southern Birdwing is a large and striking Swallowtail butterfly endemic to Peninsular India. With a wingspan of 140–190 mm, it is the largest butterfly found in southern India. You may note that Grass Jewel is the smallest butterfly of India and Atlas Moth is the largest moth found in India.

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Silent Valley National Park, is a national park in Kerala, India. It is located in the Nilgiri hills, has a core area of 89.52 km², which is surrounded by a buffer zone of 148 km². This national park has some rare species of flora and fauna.

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Reducing and reusing products cuts down on manufacturing pollution, just as the use of recycled instead of virgin materials prevents pollution in industrial processes. Households can save money by reusing materials and products and by practicing smart shopping habits that reduce waste.

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Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion. The composition of smoke depends on the nature of the burning fuel and the conditions of combustion. Smoke from oxygen-deprived fires contains a significant concentration of compounds that are flammable. Many compounds of smoke from fires are highly toxic and/or irritating. The most dangerous is carbon monoxide leading to carbon monoxide poisoning, sometimes with the additive effects of hydrogen cyanide and phosgene.

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The headquarters of the Convention on International Trade in Endangered Species (CITES) is in Geneva, Switzerland. CITES is a multilateral treaty to protect endangered plants and animals, adopted in March 1973 by 80 countries. It aims to ensure that international trade in specimens of wild animals and plants does not threaten the survival of the species in the wild.

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Barometer is instrument which is used to measure to pressure. A slow downfall of reading suggests a low pressure area is passing in a nearby region, it may rains. If the reading is going down very fast then it is an indication of storm.

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Acid rain results when sulfur dioxide (SO₂) and nitrogen oxides (NO_X) are emitted into the atmosphere and transported by wind and air currents. The SO₂ and NO_X react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.