Tag: evs - i

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Questions Related to evs - i

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Which of the following involves the clearing of the forest?

  1. Afforestation

  2. Deforestation

  3. Soil erosion

  4. None of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cutting of trees or clearing the forest is called as deforestation. Deforestation not only affects the land from which it is cleared but it also affects the environment. Trees are very important for the environment because they help in reducing pollution by releasing more oxygen. They protect the environment in many ways and hence, cutting of the tree is harmful and affects the environment.

Thus, the correct answer is option B.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Which of the following is the consequence of deforestation?

  1. Global warming

  2. Erosion of the top layer of soil

  3. Increase in the level of carbon dioxide in air

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deforestation is the process of removal or the cutting down of the trees. The absence of the trees results in an increase in the concentration of carbon dioxide which causes global warming. The roots of the plants help in holding the soil and deforestation causes soil erosion from the upper layer of the soil. The plants take up the carbon dioxide from the air for photosynthesis. When there are no trees, there is increase in the level of carbon dioxide.

Thus, the correct answer is option D. 

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Which of the following are the adverse effects of deforestation?

  1. Reduced rainfall

  2. Soil erosion

  3. Destruction of habitat

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deforestation is removal, decrease or deterioration of forest cover of an area. It causes shrinkage of fuelwood, reduced timber supply, change in climate, flash floods, soil erosion, siltation, cyclones, drought, desertification, reduced rainfall and destruction of habitat. Thus, the correct answer is option D.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Which of the following natural disasters affect habitat in the environment?

  1. Droughts

  2. Floods

  3. The thinning of the ozone layer

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Drought is the condition of shortage of water which affects all life forms. Flood is the condition of the overflow of water on land that can submerged plants, human-made articles and thinning of the ozone layer increases the global warming and climate change which affects the flora and fauna. All these conditions can harm the organisms and their habitat and thus, can threat to the biodiversity.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

What is / are the likely consequences of deforestation?

  1. Carbon dioxide in the air increases.

  2. Destruction of habitats takes place.

  3. Mineral salts in the soil are washed away.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deforestation is the depletion / destruction of forest resources. Its main cause is the explosion of human and livestock population with the increased demand of the basic needs. The major effect of deforestation is the loss of precious wildlife, rare species of flora and fauna due to loss of habitat, soil erosion, accentuated floods, drought, pollution and increased level of carbon dioxide.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Replanting forest at places where they were destroyed is called :

  1. reforestation

  2. desertification

  3. replantation

  4. degradation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A- Reforestation is natural or intentional restocking of forests that have been depleted mainly due to deforestation or any natural calamity. Reforestation gives boost to the wild life and helps in improving the air quality, climate control, improvement in natural resources and many more advantages for living beings.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Which of the following prevents afforestation in deserts?

  1. Goat and grazing animals

  2. Local resident

  3. Unfertility of soil

  4. Low rainfall
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Major problem in desert is lack of rainfall. While grazing of animals and local residents can be controlled but without rainfall growth of trees and afforestation is not possible. 

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

Forest reserves can be protected through all measures except

  1. Laws inhibiting tree felling

  2. Laws allowing tree felling

  3. Prohibition of hunting

  4. Human population control
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Laws allowing tree felling would encourage deforestation rather than protecting forest reserves. The other options are legitimate conservation measures.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

The establishment of forest growth on areas that either had forest or lacked it is known as

  1. Deforestation.

  2. Organic farming.

  3. Forestation.

  4. None of these.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Forestation is the general term for establishing forest growth in an area, regardless of whether it had trees previously or not.

Multiple choice evs - i the environment and us damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

The establishment of a forest or stand of trees in an area where there was no previous tree cover is known as

  1. Deforestation.

  2. Afforestation.

  3. Forestation.

  4. None of these.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Afforestation specifically refers to the establishment of a forest in an area that did not have tree cover previously.