Tag: the environment and us

Quizzes (17) Questions (187)

Questions Related to the environment and us

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.

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

Desertification is a type of

  1. food preparation method for plants

  2. afforestation method

  3. land degradation

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

Desertification is a type of land degradation in which relatively dry area of land becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife.

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

The hard mineral crust formed at or near the surface of soil is known as

  1. Duripan.

  2. Duricrust.

  3. Anaerobic soil.

  4. Peat.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A duricrust is a hard, mineralized crust formed at or near the surface of the soil, often through the accumulation of minerals like iron or silica.

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

............ is a man-made source of air pollution.

  1. Desert

  2. Farming

  3. Dust storms

  4. Volcanic eruptions
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Farming is considered as the major source of air pollution due to man. This is the man-made source of air pollution which allows the particles to enter the atmosphere. The movement of tractors will cause the soil particles to rise up in the air. The particles from the fertilizers and pesticides spray enter the atmosphere. Also during harvesting and husking, the small particles in the form of pollens and husks can result in air pollution. 

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  one of the following is not a reason for shortage of usable water?

  1. Over exploitation

  2. Climate change

  3. Deforestation

  4. Decrease in sea level
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Overuse of the water resources will result in the exhaustion of the water supply. The climatic change has resulted in global warming and seasonal variations. There is a decrease in the annual rainfall which was received by a region due to shortening of the seasons. Deforestation has resulted in a decrease in the number of trees which thereby affect the amount of rainfall which was received. There is soil erosion which results in water run off.The decrease in the level of the sea is not a reason for the shortage of usable water. 

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

In recent years, there has been an increasing incidence of floods in the plains of northern India because

  1. There has been an increase in annual rainfall

  2. The rate of silting of darns has gone up

  3. There has been increased deforestation in the catchment areas

  4. Increased areas of land is being self cultivated
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Deforestation in catchment areas reduces the soil's ability to absorb water, leading to increased surface runoff during heavy rains, which contributes to more frequent and severe flooding in downstream plains.

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

Deforestation is the major causal agent of

  1. Depletion of natural resources

  2. Environmental pollution

  3. Desertification of habitat

  4. Genetic erosion
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Deforestation leads to erosion of top fertile layer of the soil, it also depletes the soil of decomposing microorganisms and thus humus. Absence of humus makes the soil dry i.e, its water holding capacity is decreases. So no vegetation grows in the soil, further depleting the condition of the soil leading to desert like condition. Hence, also called desertification
So, the correct answer is 'Desertification of habitat'