Biology

Management of Natural Resources

Question:

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

Answer:

Chipko Movement:

  • During 1970, in Reni village of Garhwal, a contractor was allowed to cut trees in a forest near the village.
  • When the contractor’s workers went to the forest to cut trees, the women of the village hugged the tree trunks to prevent the workers from cutting trees.
  • Chipko means ‘hug’ and the movement began with the villagers hugging trees. It is called the ‘Chipko Andolan’.

The movement benefited the local population as it conserved the forest products. It benefited the environment as it conserved the quality of soil and sources of water thereby, maintained balance in nature.

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Management of Natural Resources

Q 1.

Suggest any four changes that you would like to incorporate in the life style of students of your age to move towards a sustainable use of available resources. [All India Delhi 2008(C)]

Q 2.

What measures would you take to conserve electricity in your house?

Q 3.

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

Q 4.

State whether the following statement is true or false :
Chipko Andolan was associated with the conservation of wild animals such as tigers and lions.

Q 5.

What is meant by “sustainable development” ?

Q 6.

Is water conservation necessary? Give reasons.

Q 7.

Define:

  1. Biomass
  2. Anaerobic degradation [Foreign]

Q 8.

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

Q 9.

Suggest some approaches towards the conservation of forests.

Q 10.

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

Q 11.

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

Q 12.

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 13.

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 14.

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

Q 15.

Give two examples each of the following:

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

Q 16.

List the products of combustion of fossil fuels. What are their adverse effects on the environment? [All India]

Q 17.

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

Q 18.

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 19.

Give one example to show how the participation of local people can lead to the efficient management of forests.

Q 20.

What is a dam? Write two main advantages and two ill-effects of constructing a big dam. [Delhi(C)]

Q 21.

List four advantages of water stored in the ground. [Delhi]

Q 22.

What is the main purpose of rainwater harvesting ?

Q 23.

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

Q 24.

Name the person who is most remembered for the protection of Khejri trees in Rajasthan.

Q 25.

Why should we conserve forests and wildlife ?

Q 26.

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

Q 27.

(a) State the advantages of constructing dams across the rivers.
(b) Describe some of the problems associated with the construction of dams.

Q 28.

List any two traditional systems of water harvesting. [Foreign]

Q 29.

List any four advantages of water harvesting. [All India; Foreign]

Q 30.

“Burning fossil fuels is a cause of global warming.” Justify this statement. [Delhi]

Q 31.

What is meant by exploitation of resources with short-term aims? List its four advantages. [Delhi(C)]

Q 32.

Describe briefly the ‘khadin’ system of rainwater harvesting practised in Rajasthan.

Q 33.

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

Q 34.

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

Q 35.

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

Q 36.

How would these advantages differ from the advantages of using a long-term perspective in managing our resources?

Q 37.

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

Q 38.

Name the most common practice of recharging ground water.

Q 39.

The pH of a river water sample as measured by pH paper is found to be 6. What does it tell us about water ?

Q 40.

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

Q 41.

Name a clean gaseous fuel other than LPG and natural gas.

Q 42.

What measures would you take to conserve electricity in your house ?

Q 43.

In the context of conservation of natural resources, explain the terms reduce, recycle and reuse. From among the materials that we use in daily life, identify two materials for each category.

Q 44.

Why should we conserve forests and wildlife?

Q 45.

What is water harvesting? Mention any two water harvesting structures. [Delhi]

Q 46.

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 47.

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 48.

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

Q 49.

Apart from the availability of forest products, name two other things which are affected by the destruction of forests.

Q 50.

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