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In this approach, threatened animals and Plants are taken out from their natural habitat and placed in special setting where they can be protected and given special care. Which of the following is odd with respect to statement?
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15.2.1 How do we conserve Biodiversity?
15.2 Biodiversity Conservation
Biodiversity and Conservation
Which of the following is not ex-situ mean of conservation of Biodiversity?
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15.2.1 How do we conserve Biodiversity?
15.2 Biodiversity Conservation
Biodiversity and Conservation
The world summit on sustainable development:
Which of the following is not correct?
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15.2.1 How do we conserve Biodiversity?
15.2 Biodiversity Conservation
Biodiversity and Conservation
Pollution from animal excreta and organic waste from kitchen can be most profitably minimized
(b) : Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by using the in the generation of biogas. Biogas is a mixture of methane and carbon dioxide resulting from the anaerobic decomposition of such waste materials as domestic, industrial and agricultural sewage.
Which one of the following is an enviroment related disorder with the correct main cause?
(b): Blue baby syndrome is a pathological condition, called methemoglobinemia, in which blood's capacity for oxygen transport is reduced, resulting in bluish skun discoloration in infants. Blue baby syndrome begins when large amounts of nitrates in water are ingested by an infant and converted to nitrite by the digestive system. The nitrite then reacts with oxyhaemoglobin (the oxygen-carrying blood protein) to form metheglobin, which cannot carry oxygen.
Pneumoconiosis is a man-made, occupational lung diseases that are contracted by prolonged breathing of coal mine dust i.e caused by theinhalation of dust, characterized by formation of nodular fibrotic changes in lungs.
Non-Hodgkin lymphoma (or NHL) is a cancer of lymphoid tissue, a part of the lymphatic system. NHL is a heterogenous disease.
Skin cancer is a malignant tumor that grows in the skin cells. It is commonly caused by exposure to the sun's UV rays.
The Montreal Protocol refers to
(c) : The montreal protocol on substances that deplete the ozone layer was signed in Montreal, Canada, by over 150 countries at a convention in 1987 to cut use of CFCs (chlorofluorocarbons). The aim of the Protocol was to protect the ozone layer in the stratosphere by decreasing and eventually eliminating the use of ozone-depleting substances (ODS) like CFCs. It is regarded as one of the most successful international treaties in modern history
Ozone in stratosphere extends
(b) : Stratosphere zone of earth's atmosphere contains a layer of ozone (O3) which prevents the earth surface from about 99% of incoming solar UV radiations. Ozone layer is present in the stratosphere
which is also called ozonosphere. It is at an atitude of 23-25 km over equator and its concentration is 300 dobsons.
Rain is called acid-rain when its pH is below
(d) : Acid rain is rainfall and other forms of precipitation with a pH less than 5. pH of normal rain is 5.6 -6.5. is caused by the large scale emission of acidic gases into the atmosphere from thermal power plants, industries and automobiles.
In vehicles, catalytic converters are used
(d) : Catalytic converters have platinum - palladium and rhodium metals as catalyst. It converts more harmful carbon monoxide and unburnt hydrocarbons into less harmful carbon dioxide and water.
Cattle ranches are known to causes acute green house effect. This is due to
(b) : Cattle ranching refers to practice of raising grazing livestock such as cattle or sheep for meat and wool, etc. The area of landscape meant primarily for cattle ranching is called a ranch. The practice has lead to accelerated deforestation and contributed to increased methane gas concentration in atmosphere. Whatever cattle eat; is subjected to the action of methanogens (bacteria) harbouring the stomach (rumen) of cattle. The action of these bacteria on food material produces methane gas which is released through cattle fart into the earth's almosphere where it absorbs heat just like carbon dioxide, contributing to global warming
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