Physical geography miscellaneous
-  Which of the following metals contribute to to biomagnification problem in the ecosystem ?
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                        View Hint View Answer Discuss in Forum Mercury causes biomagnification problem in the ecosystem. Correct Option: AMercury causes biomagnification problem in the ecosystem. 
-  The word Biosphere refers to :
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                        View Hint View Answer Discuss in Forum Biosphere refers to that portion of the Earth which is occupied by the various forms of life, in addition to the three main physical zones, the Lithosphere, the Hydrosphere and the Atmosphere. Correct Option: ABiosphere refers to that portion of the Earth which is occupied by the various forms of life, in addition to the three main physical zones, the Lithosphere, the Hydrosphere and the Atmosphere. 
-  All the ecosystems taken together in a geographical area form a bigger unit called:
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                        View Hint View Answer Discuss in Forum Biome is a large naturally occurring community of flora and fauna adapted to the particular conditions in which they occur. For example, Tundra region. Correct Option: CBiome is a large naturally occurring community of flora and fauna adapted to the particular conditions in which they occur. For example, Tundra region. 
-  “Tidal forest” is otherwise called :
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                        View Hint View Answer Discuss in Forum Tidal forest is also called Mangrove forest. Correct Option: CTidal forest is also called Mangrove forest. 
-  Rubber plantations are found in
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                        View Hint View Answer Discuss in Forum The rubber plant grows wild in the equatorial regions of the world which are marked by rainfall of around 250 cm evenly distributed without any marked dry season and with at least 100 rainy days per year; temperature range of about 20°C to 34°C with a monthly mean of 25°C to 28°C; and high atmospheric humidity of around 80%.The three largest producing countries, Thailand, Indonesia and Malaysia, together account for around 72% of all natural rubber production. Correct Option: DThe rubber plant grows wild in the equatorial regions of the world which are marked by rainfall of around 250 cm evenly distributed without any marked dry season and with at least 100 rainy days per year; temperature range of about 20°C to 34°C with a monthly mean of 25°C to 28°C; and high atmospheric humidity of around 80%.The three largest producing countries, Thailand, Indonesia and Malaysia, together account for around 72% of all natural rubber production. 
 
	