Biology

Management of Natural Resources

Question:

Write a short note on ‘Chipko Andolan’ (Hug the Trees Movement).

Answer:

The ‘Chipko Andolan’ (Hug the Trees Movement) originated from an incident in a remote village called ‘Reni’ in Garhwal in the early 1970’s. A logging contractor had been allowed to cut down trees in a forest close to a village. One day, when the men folk of the village were out for work, the contractor’s workers came in the forest to cut down the trees. In the absence of the men, the women of the village reached the forest quickly and clasped the tree trunks with their arms, preventing the workers from cutting down the trees. The forest trees were thus saved. The Chipko Movement quickly spread across all the communities and helped in the conservation of forests.

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Management of Natural Resources

Q 1.

Define:

  1. Biomass
  2. Anaerobic degradation [Foreign]

Q 2.

Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment ?

Q 3.

What is meant by wildlife? How is wildlife important for us? [Foreign]

Q 4.

Why do you think there should be equitable distribution of resources? What forces would be working against an equitable distribution of our resources?

Q 5.

State two changes you can make in your habits to reduce the consumption of electricity or water. [All IndiaiC)]

Q 6.

(a) What is a natural resource ? Name three important natural resources.
(b) Why do we need to manage our natural resources ?

Q 7.

What is an equitable distribution of resources in a society and why is it necessary? State any two factors which work against an equitable distribution of resources. [Foreign]

Q 8.

Suggest three ways to maintain a balance between environment and development to survive. [Delhi]

Q 9.

Name two factors which can be used to find whether river water has been contaminated.

Q 10.

Why must we conserve our forests? List any two causes for deforestation to take place. [Delhi]

Q 11.

Why is the process of ‘reuse’ better than that of ‘recycling’ ?Why is the process of ‘reuse’ better than that of ‘recycling’ ?

Q 12.

Give two examples each of the following:

  1. Renewable sources of energy
  2. Non-renewable sources of energy. [All India]

Q 13.

What are the main uses of coal and petroleum products ?

Q 14.

(a) What is meant by rainwater harvesting ? Name some of the ancient structures used for rainwater harvesting by the rural people.
(b) What are the various advantages of water stored in ground ?

Q 15.

Which of the two is a better option, (i) to collect rainwater in ponds or artificial lakes, or (ii) to let it recharge groundwater by water harvesting? List two advantages of the option to justify your answer. [Foreign]

Q 16.

What is the name of the process in which rainwater falling on the earth is stopped from flowing and made to percolate into the ground ?

Q 17.

Write the full names of (a) CFL, and (b) CFC.

Q 18.

Why should fossil fuels like coal and petroleum be used judiciously ?

Q 19.

State the meaning of “sustainable management”. Reuse is better than recycling. How? [Foreign]

Q 20.

Name two fossil fuels.

Q 21.

Name the rivers with which the following dams are associated :
Name the rivers with which the following dams are associated :
(a) Tehri Dam
(b) Sardar Sarovar Dam
(c) Bhakra Dam

Q 22.

What is the main purpose of rainwater harvesting ?

Q 23.

Write a short note on ‘Chipko Andolan’ (Hug the Trees Movement).

Q 24.

Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why ?

Q 25.

An environmentalist on visit to your school suggested the use of three R’s to save the environment. Explain what he meant by three R’s and how you would follow his advice at home. [All India]

Q 26.

State any four personal choices you would like to make to reduce energy consumption without affecting the quality of life or work explaining how each one of them would help you to do so. [Foreign]

Q 27.

List any four characteristics of a good fuel. [Delhi]

Q 28.

How did ‘Chipko Andolan’ ultimately benefit the local people? Describe briefly. [Foreign]

Q 29.

What are the three R’s to save the environment ? Explain with one example of each.

Q 30.

Explain why, despite good rains, we are not able to meet the demand for water of all the people in our country.

Q 31.

In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the water body was completely covered with green floating plants and fishes started dying in large numbers.  Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.

Q 32.

What changes can you make in your habits to become more environment-friendly?

Q 33.

State two reasons each of conserving (a) forest and (b) wildlife. [All India(Q)]

Q 34.

State an instance where human intervention saved the forests from destruction. [Delhi(Q)]

Q 35.

Name any four categories of people who depend on the forest resources, mentioning major needs of each category. [Foreign]

Q 36.

What are non-renewable resources of energy? Give two examples of such resources. [Delhi]

Q 37.

List three problems which arise due to construction of big dams. Suggest a solution for these problems. [All India]

Q 38.

Name the bacteria whose presence in water indicates the contamination with disease-causing micro-organisms.

Q 39.

Which fossil fuel is conserved :Which fossil fuel is conserved :
(a) when we save on electricity ?
(b) when we use bicycle for covering short distances instead of a motorbike ?

Q 40.

Name the most common practice of recharging ground water.

Q 41.

Choose one term from the following which include all others :
coal, natural gas, fossil fuels, petroleum

Q 42.

Fill in the following blanks with suitable words :Fill in the following blanks with suitable words :
(a) LPG is a ……………fuel but biogas is not a…………. fuel.
(b) Glaciers are a source of…………………..
(c) One of the main aim of management of forests and wildlife is to conserve the……………….which we haveinherited.
(d) Khadin is a traditional………………………..harvesting system in Rajasthan.
(e) When a fuel burns in an insufficient supply of air, then some poisonous gas called ……………………….. is also produced.

Q 43.

What is meant by “sustainable development” ?

Q 44.

(a) Locate and name the water reservoirs in figures (a) and (b).
(b) Which has an advantage over the other and why?
ncert-exemplar-problems-class-10-science-chapter-16-management-natural-resources-1
ncert-exemplar-problems-class-10-science-chapter-16-management-natural-resources-2

Q 45.

Name any two forest products, each of which is the basis for some industry. [Delhi(C)]

Q 46.

What is meant by sustainable management? The environmentalists are insisting upon “sustainable natural resource management”. State its four advantages. [All India (C)]

Q 47.

List any four disadvantages of using fossil fuels for the production of energy. [All India]

Q 48.

Name the major programme started to replenish forests.

Q 49.

With which process are the following ancient structures associated ?
Kulhs, Eris, Surangams, Kattas, Pynes

Q 50.

What is silviculture ? What are its advantages ?