Biology

Management of Natural Resources

Question:

List any two causes of our failure to sustain availability of underground water.[Foreign]

Answer:

Two causes of our failure to sustain availability of underground water are:

  1. Rising population: As the population increases, demand for water increases resulting in depletion of underground water level.
  2. Industrialization: Industries need more and more water to manufacture products. With growing industrialization, demand for water increases which results in reduction in the availability of underground water.
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Management of Natural Resources

Q 1.

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

Q 2.

Is water conservation necessary? Give reasons.

Q 3.

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

Q 4.

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 5.

What is the main purpose of rainwater harvesting ?

Q 6.

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

Q 7.

Give two examples each of the following:

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

Q 8.

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 9.

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 10.

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 11.

What is meant by “sustainable development” ?

Q 12.

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

Q 13.

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

Q 14.

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 15.

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

Q 16.

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

Q 17.

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

Q 18.

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

Q 19.

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 20.

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

Q 21.

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

Q 22.

What would be the advantages of exploiting resources with short-term aims?

Q 23.

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

Q 24.

Suggest some approaches towards the conservation of forests.

Q 25.

Define:

  1. Biomass
  2. Anaerobic degradation [Foreign]

Q 26.

What are the main uses of coal and petroleum products ?

Q 27.

List two advantages associated with water harvesting at the community level.

Q 28.

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

Q 29.

Why should we conserve forests and wildlife?

Q 30.

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 31.

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 32.

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 33.

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

Q 34.

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

Q 35.

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

Q 36.

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

Q 37.

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

Q 38.

Name two fossil fuels.

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.

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

Q 41.

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

Q 42.

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

Q 43.

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 44.

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

Q 45.

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

Q 46.

(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 47.

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 48.

What are the two kinds of natural resources? [Delhi(C)]

Q 49.

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

Q 50.

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