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Test: Conservation of Plants & Animals- 1


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10 Questions MCQ Test Science & Technology for UPSC CSE | Test: Conservation of Plants & Animals- 1

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Test: Conservation of Plants & Animals- 1 - Question 1

Soil erosion may lead to :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 1
  • The removal of top fertile layer of soil is called soil erosion. 
  • Soil is a natural resource that may look robust and endless, but is in fact the fragile product of thousands of years of formation.
  • Topsoil, which lies closest to the surface of the land, contains essential nutrients for crops. It is this layer of soil that is endangered by wind and water erosion.
  • Soil erosion decreases soil fertility, which can negatively affect crop yields.
  • It also sends soil-laden water downstream, which can create heavy layers of sediment that prevent streams and rivers from flowing smoothly and can eventually lead to flooding.
  • Once soil erosion occurs, it is more likely to happen again.
Test: Conservation of Plants & Animals- 1 - Question 2

Large scale cutting of trees is named :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 2

Large scale cutting of trees is called deforestation. Deforestation leads to global warming and desertification of land.

Test: Conservation of Plants & Animals- 1 - Question 3

The variety of animals, plants and microbes found in a particular area constitutes that area

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 3

Biodiversity is the presence of varieties of animals, plants and microbes found in a particular area. Biodiversity depends upon climatic condition and availability of water.

Test: Conservation of Plants & Animals- 1 - Question 4

Biotic components of an ecosystem does not include :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 4

The living components of an ecosystem are called biotic components of ecosystem. Ecosystem includes microbes, plant and animals but it does not include minerals.

Test: Conservation of Plants & Animals- 1 - Question 5

A sustainable functional unit of biosphere is called:

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 5

Ecosystem is the basic functional unit of biosphere. Biosphere is the sum total of all kinds of ecosystem. The ecosystem includes abiotic and biotic components of and their interaction.

Test: Conservation of Plants & Animals- 1 - Question 6

The largest among various protected areas is a :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 6

Biosphere reserve is the largest among various protected areas for plants and animals. Biosphere reserves covers large area and different zone. Wildlife sanctuary and national park are small areas.

Test: Conservation of Plants & Animals- 1 - Question 7

Animals found in a particular area are named as:

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 7

Animal found in a particular area called fauna and plants found in particular area are called flora. Flora and fauna are characteristic of a particular habitat.

Test: Conservation of Plants & Animals- 1 - Question 8

The full form of IUCN is :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 8

IUCN stands for International union of conservation of nature and natural resources. This union is responsible for conservation of nature and natural resources throughout the world.

Test: Conservation of Plants & Animals- 1 - Question 9

That part of earth in which living organisms exist is called:

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 9

The part of earth in which living organisms are found is called biosphere. Biosphere includes lithosphere, hydrosphere and atmosphere.

Test: Conservation of Plants & Animals- 1 - Question 10

Threatened species does not include :

Detailed Solution for Test: Conservation of Plants & Animals- 1 - Question 10

Those species that are less in number and going to extinct are called threatened species. Extinct species are those which are already lost from the earth.

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