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

Deforestation leads to reduced rainfall due to

  1. Level of $CO _2$ in the atmosphere rises

  2. Global warming

  3. Disturbance in natural water cycle

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

Green plants lose water by the process of transpiration. This contributes a lot towards atmospheric moisture. Thus, green plants have major contribution in precipitation. Due to this, deforestation leads to reduced rainfall. Thus, the correct answer is option C.

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

What are the consequences of deforestation?

  1. Soil erosion

  2. Loss of biodiversity

  3. Floods and droughts and climate change due to global warming

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Causes of deforestation are as follows:
  • Clearing land for human habitation and cultivation
  • The need of wood for building houses and factories.
  • The need of wood for making furniture.
Consequences of deforestation are as follows:
  • Soil erosion
  • Depletion of groundwater
  • Flash flood
  • Global warming
  • Loss of biodiversity
  • Droughts and climate change due to global warming
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 due to

  1. Deforestation

  2. Soil-erosion due to water

  3. Soil-erosion due to wind

  4. Very high temperature and low rainfall
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Desertification is defined as a process of land degradation due to climatic variations and human activities. Overgrazing is the major cause of desertification worldwide. Other factors are urbanization, overdrafting of groundwater and deforestation. Thus the correct answer is option A.

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

Destroying a forest means destroying

  1. Ecosystem

  2. Plant life

  3. Population of wild life

  4. Food and shelter of wild animals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Destroying a forest has many negative effects on the environment. Seventy percent of earth's terrestrial animals and plants live in forests. The most adverse impact is the loss of habitat for millions of species leading to disturbance in the food chain that is an important component of the ecosystem. Thus the correct answer is option A.

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.