Tag: degradation of land

Questions Related to degradation of land

Deforestation is the major causal agent of

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

  1. Depletion of natural resources

  2. Environmental pollution

  3. Desertification of habitat

  4. Genetic erosion

Show answer
Correct Option: C
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'

Which one is not a natural factor for causing soil erosion?

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

  1. Gullying

  2. Clips

  3. Rilling

  4. Deforestation

Show answer
Correct Option: D
Explanation:

Soil erosion is the process of weathering of top layer of soil either due to natural factor or artificial factor. The natural factors are called as erosion agents. These include water, wind, ice. Water produces 4 types of erosion, namely splash erosion, sheet erosion, rill erosion, and gully erosion. Gully erosion occurs due to drainage of soil by surface water runoff. Rilling erosion is the erosion due to concentrated water running through little streamlets. Deforestation is the artificial or man-made factor for causing soil erosion.

Thus, the correct answer is 'Deforestation.'

Planting of trees, shrubs and others in between crop plants for stabilisation of soil is

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

  1. Taungya

  2. Social forestry

  3. Production plantation

  4. Agroforestry

Show answer
Correct Option: D
Explanation:
  • Agroforestry is the planting of trees, shrubs, and others in between crop plants.
  • Advantages of agroforestry practices include Increased crop production and economic gain. Soil conservation and improved soil quality. Sequestration of atmospheric carbon.
  • Hence Planting of trees, shrubs, and others in between crop plants for stabilization of soil is Agroforestry.
  • So, the correct answer is 'Agroforestry'.

Decreased rainfall in northern areas is due to

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

  1. Changes in sun

  2. Global phenomenon

  3. Deforestation in catchment areas

  4. Deforestation in evaporating area near equator

Show answer
Correct Option: C
Explanation:

Deforestation leads to irregular water cycle, as a result there is decreased rainfall, deforestation in catchment areas is the main resaon behind the decreased reainfall in northern region.

So, the correct option is 'Deforestation in catchment areas'.

Deforestation does not lead to

evs let's plant trees damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

  1. Quick nutrient cycling

  2. Soil erosion

  3. Alteration of local weather conditions

  4. Destruction of natural habitat of wild animals

Show answer
Correct Option: A
Explanation:

Deforestation leads to soil erosion, alteration of local weather conditions, destruction of natural habitat of wild animals, but it does not lead quick nutrient cycling

So, the correct answer is 'Quick nutrient cycling'

Afforestation in relation to urban development is component of

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

  1. Social forestry

  2. Integrated forest development

  3. Agroforestry

  4. Fuel forestry

Show answer
Correct Option: B
Explanation:
  • Afforestation is the process of planting trees, or sowing seeds, in a barren land devoid of any trees to create a forest. The term should not be confused with reforestation, which is the process of specifically planting native trees into a forest that has decreasing numbers of trees.
  • Hence Afforestation in relation to urban(cities) development is a component of Integrated forest development.
  • So, the correct answer is 'Integrated forest development'.

A movement similar to Chipko which has spread in South is

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

  1. Uliso

  2. Appiko

  3. Belesu

  4. Balasu

Show answer
Correct Option: B
Explanation:
The Chipko Movement was launched by Chandi Prasad Bhatt and Sunder Lal Bahuguna in 1973, against large scale cutting of trees by timber contractors in the Uttarakhand hills. The movement started in Chamoli district of Garhwal region in Uttarakhand. Local hill women from villages were organised and made aware of ecological threat in the hills. They actively participated in the campaign. They embraced or hugged the trees when the timber contractors reached and forced them to leave. This novel campaign for saving hill forests and greenery spread all along the hill region and to Karnataka in South also in 1983. In Karnataka, it was named as Apikko movement which was started by Appu and Mamtha in a small village named Gubbi Gadde near Sirsi.
So, the correct answer is 'Apikko'.

Maximum damage to forest cover is caused by

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

  1. Edaphic factors

  2. Climatic factors

  3. Biotic factors

  4. Physiographic factors

Show answer
Correct Option: C
Explanation:
A. Edaphic factors are the abiotic factors that relate to structure and composition of soil.
B. Climatic factors include rain, wind, earthquake etc. which are related to climate.
C. Biotic factors are the living components of an ecosystem which include producers and consumers.
D. Physiographic factors are the factors associated with physical nature and topography of an area.
Maximum damage to forest is caused by biotic factors as overgrazing destroy vegetation and also due to human activities. 
So, the correct answer is 'Biotic factors'.

The term 'Phytoremediation' refers to the _________________.

evs let's plant trees damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

  1. Use of plants for removing pollutants from the environment

  2. Use of plants as remedies to cure diseases

  3. Use of plants for restoration of degraded forests

  4. Use of plants in the retention of soil water

Show answer
Correct Option: A

The easiest way to improved the denuded forests of teak in India in to.

evs let's plant trees damaging the forests deforestation and afforestation protecting our environment pollution of soil degradation of land

  1. Apply mycorrhiza

  2. Apply fertilizer

  3. Add bacterial culture

  4. Use green algae

Show answer
Correct Option: A