Tag: protecting our environment

Questions Related to protecting our environment

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

What is the importance of forest as a resource?

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

  1. It improves water holding capacity of soil.

  2. It provides habitat, food, protection to wild life.

  3. It help in balancing $CO _{2}$ and $O _{2}$ of atmosphere.

  4. All of the above.

Show answer
Correct Option: D
Explanation:
Forests and biodiversity is key to all life forms. The richer the diversity of life, the greater the opportunity for medical discoveries, economic development and adaptive responses to such new challenges as climate change.
Forests are renewable resources which provide
(a) Habitat, food, protection to wildlife.
(b) Help in balancing CO$ _2$ and O$ _2$ of atmosphere.
(c) Improves water holding capacity of soil.
(d) Regulates water cycle.
(e) For human being, they are the source for all essential commodities like, fuel wood, timber pulp and paper etc.
(f) It provides useful products like fruits, resins, gums, essential oils, bidi wrapper etc. 
Therefore, the correct answer is option D.

When we destroy forest, what we are actually destroying?

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

  1. Only food for the wild life

  2. Only wild life's habitat

  3. Only trees

  4. Only environment

Show answer
Correct Option: D
Explanation:

Forests are important for the environment as well as human life.

  1. Half of the earth's oxygen is generated by forests. Thus cutting down forests will cause gradual depletion of oxygen.
  2. Forests support wildlife and are the shelter for these animals. Destroying them will cause death and extinction of these wildlife animals.
  3. The trees absorbs the carbon dioxide generated by industries, transportation and other human activities. Most of the pollution control is brought about by forests.
  4. Forests control floods.
  5. They also help in regulating regional climate.
Thus destroying forests is indirectly destroying the environment.

Forest destruction results in 

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  1. Loss of wild life

  2. Famine, floods and drought

  3. Soil erosion

  4. All of the above

Show answer
Correct Option: D
Explanation:

Deforestation is the cutting of trees which disturbs the equilibrium of a healthy environment. It increases the carbon dioxide content in the atmosphere and contributes to global warming. They produce oxygen and regulates the water cycle by releasing water vapour into the atmosphere. Without trees, forest lands can quickly become barren land. It also causes loss of wildlife, due to the loss of its habitat. Deforestation leads to famine (scarcity of food), flood, and drought as well as loosened soil causes soil erosion. Thus, the correct answer is option D.

If forest cover is reduced to half, what is most likely to happen on a long term basis? 

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

  1. Tribals living in these areas will starve to death.

  2. Domestic animals in these and joining areas will die due to lack of fodder.

  3. Large biomes will become deserts.

  4. Crop breeding programes will suffer due to a reduced ability of variety of germplasm.

Show answer
Correct Option: A
Explanation:

If forest cover is reduced to half, it would adversely affect the inhabitants. In rural areas, a community of people lives in the forest as a part of their tradition. They are completely dependent on the forest for their basic needs. They worship the trees and consider it as their ancestral belongings. The dependent tribals on a particular forest will be harmed by the clearing of the forest.

What is not useful to increase agriculture production?

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

  1. Mechanisation of agriculture

  2. Enhanced irrigation facilities

  3. Use of fertilizers

  4. Deforestation

Show answer
Correct Option: D
Explanation:

Deforestation is the excessive cutting down of the trees which adversely affects the environment. It is not useful for increasing the agricultural production as because it creates several major problems like soil erosin, infertility, and droughts.

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

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

  1. There has been an increase in annual rainfall.

  2. The rate of silting of dams has gone lip.

  3. There has been increased deforestation in the catchment areas.

  4. Increased areas of land is being self cultivated.

Show answer
Correct Option: C
Explanation:

Deforestation is the removal of forest that can cause flooding. Coastal vegetation reduces the impact of waves and winds associated with a storm surge. Without this vegetation, coastal villages are susceptible to damaging floods. When trees are there, the roots are able to hold the soil and prevent erosion. When the roots are gone after deforestation, the soil can be errode and causes flood or other natural disasters.

Therefore, the correct answer is option C.