ecology & bio environment geography section 1 Practice Questions Answers Test with Solutions & More Shortcuts
Ecology & Bio geography PRACTICE TEST [2 - EXERCISES]
ecology & bio environment geography section 1
ecology & bio environment geography section 2
Question : 11 [SCC CML 1999]
Which one of the following is a greenhouse gas?
a) Ozone
b) Nitrogen
c) Carbon-di-Oxide
d) Oxygen
Answer »Answer: (c)
A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone.
Question : 12 [SCC SO 2006]
The sphere of living matter together with water, air and soil on the surface of the earth is known as
a) Atmosphere
b) Biosphere
c) Hydrosphere
d) Lithosphere
Answer »Answer: (b)
Part of the Earth’s surface and atmosphere that contains the entire terrestrial ecosystem, and extends from ocean depths to about six kilometers above sea level. Not precisely demarkable, it contains all living organisms and what supports them soil, subsurface water, bodies of water, air and includes hydrosphere and lithosphere.
Question : 14 [SCC CAPFs 2016]
The maximum biodiversity is found in
a) Arctic forest
b) Temperate forests
c) Coniferous forests
d) Tropical rain forests
Answer »Answer: (d)
Most of the terrestrial diversity is found in tropical rainforests. As per an estimation, these forests account for around 40% to 75% of all biotic species and are home to half of all the living animal and plant species on the planet.
A single hectare of rainforest may contain 42,000 different species of insect, up to 807 trees of 313 species and 1,500 species of higher plants.
Question : 15
Rubber plantations are found in
a) Equatorial regions
b) Mountain regions
c) Polar regions
d) Temperate forests
Answer »Answer: (a)
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.
IMPORTANT indian geography mcq EXERCISES
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indian geography mcq CATEGORIES
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» Nature & Scope of Geography
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» Universe, solar system and Astronomy
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» Geomorphology & Earth landforms
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» Atmosphere & Climatology
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» Hydrosphere & Oceanography
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» Pedology or Soil & Agriculture
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» Ecology & Bio geography
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» World Physical Geography
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» World Human Geography (Population)
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» World Economic Geography (Industry, Trade, Transportation & Agriculture)
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» World Country, Capital, Area, Currency, Parliament, Religion, New & old name of country
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» Physiography & Geomorphology of India
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» Indian Drainage, Irrigation and Rivers & River Projects
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» Indian Climate
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» Ecology, Environment, Forest, Naturals vegetations of India & National Park of India
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» Indian Agriculture & Animal Husbandry
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» Minerals & Energy Resources of India
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» Industries & Trade in India
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» Transportation & Ports System of India
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