ecology & bio environment geography section 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT indian geography mcq - 2 EXERCISES
The following question based on Ecology & Bio geography topic of indian geography mcq
(a) Arctic forest
(b) Temperate forests
(c) Coniferous forests
(d) Tropical rain forests
The correct answers to the above question in:
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.
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Read more bio ecology environment Based Indian Geography Questions and Answers
Question : 1
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.
Question : 2
Global warming is expected to result in
a) All of the above
b) Change in crop pattern
c) Change in coastline
d) Increase in level of sea
Answer »Answer: (a)
Projections of future climate change suggest further global warming, sea-level rise, and an increase in the frequency and severity of some extreme weather events. Over the next several millennia, even if emissions were drastically reduced, global temperatures would remain close to their highest level for at least 1,000 years.
The coast will suffer severe impacts from sea-level rise.
Question : 3
Coastal Andhra Pradesh and Orissa often face natural disasters due to
a) Tornadoes
b) Earthquakes
c) Landslides
d) Cyclones
Answer »Answer: (d)
During summer, the Bay of Bengal is subject to intense heating, giving rise to humid and unstable air masses that produce cyclones. Widespread death and property destruction are reported every year in exposed coastal states such as Andhra Pradesh and Odisha.
Although cyclones affect the entire coast of India, the East Coast is more prone compared to the West Coast. Out of the cyclones that develop in the Bay of Bengal, over 58 per cent approach and cross the east coast in October and November.
Only 25 per cent of the cyclones that develop over the Arabian Sea approach the west coast. In the pre-monsoon season, corresponding figures are 25 per cent over the Arabian Sea and 30 per cent over the Bay of Bengal.
Question : 4
Which of the following is a renewable resource ?
a) Forests
b) Mineral oil
c) Natural gas
d) Coal
Answer »Answer: (a)
Forest is a renewable resource.
Question : 5
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 : 6
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.
GET Ecology & Bio geography PRACTICE TEST EXERCISES
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