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23 lessons,
3h 1m
Practice MCQ's- Environment & Ecology 6
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Sudarshan Gurjar is teaching live on Unacademy Plus

Sudarshan Gurjar
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G=U(40) S={x€U(40) /inverse of x=x}, then order(S)=??
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  4. Consider the following pairs: Biome type 1. Taiga 2. Savannah - Grasses with scattered trees and fire resisting Vegetation type Devoid of trees, except stunted shrubs thorny shrubs 3. Temperate Broad-leaved trees with less diversity of plant species Which of the pairs given above is/are correctly matched? (a) 1 and 3 only b) 2 and 3 only (c) 1 and 2 only(d) 2 only

  5. 29.B . Pair 1: In the higher latitudes (50 -70 ) of Northern hemisphere, the Coniferous forests are found. These are also called as Taiga. These forests are also seen in the higher altitudes In Tundra type of vegetation, the growth of natural vegetation is very limited. Only mosses, lichens and very small shrubs are found here. If grows during the very short summer. This is called Tundra type of vegetation. This vegetation is found in the polar areas of Europe, Asia and North America. Thus, pair 1 is incorrectly matched Pair 2: Tropical grasslands: These grow on either side of the equator and extend till the tropics. This vegetation grows in the areas of moderate to low amount of rainfall They can grow very tall, about 3 to 4 metres in height. Savannah grasslands of Africa are of this type

  6. Savannah shrubs are fire-resistent which helps them survive periodic, natural fire spread in forests. Thus, pair 2 is correctly matched Pair 3: Temperate forests have moderately dense broad-leaved trees and have less diversity of plant species Oak, Beach, Maple etc. are some common species. Thus, pair 3 is correctly matched .

  7. Which among the following is the objective of the UNEP's Blue Carbon Initiative? (a) Development of tidal energy to meet increasing demand for energy. (b) Management of coastal ecosystems in order to ensure that their carbon sequestration are maintained. (c) Regulate movement of hazardous materials through sea routes. (d) Regulation of activities that contribute to aerosol emissions in the environment.

  8. . Answer A UNEP's Blue Carbon Initiative aims to develop a global partnership to advance the sound management of coastal and marine ecosystems in order to ensure that their carbon sequestration and storage functions are maintained, and emissions of greenhouse gases are avoided. The initiative aims at achieving the following overall targets by 2025: Reversing the current trend of the degradation of marine and coastal habitats and maintaining the amount of carbon sequestration; . Significantly increasing the area of Blue Carbon ecosystems under effective ecosystem-based management.

  9. Mobilising US$40 million for protecting and rehabilitating coastal and marine habitats, thus enhancing their capacity for carbon storage and sequestration.