Biology

Management of Natural Resources

Question:

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

Answer:

People participation in the management of forests can help in increasing forest produce as well as in their conservation. Participation of local people in the management of forest leads to the revival of degraded sal forest. In 1972, the West Bengal Forest Department formulated a novel scheme to revive the degraded sal forest by involving the local people. The forest officer A. K. Banerjee involved the villagers of the area around the forest in the protection of 1272 hectares of degraded Sal forest. In return for help in protecting the forest, the villagers were given employment in both silviculture and harvesting operations of the forest, 25 percent of the final harvest produce, and were allowed to collect firewood and fodder from the forest area on a nominal payment. With the active and willing participation of local people around the forest, the degraded sal forest of Arabari became thick and green within ten years.

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Management of Natural Resources

Q 1.

Define:

  1. Biomass
  2. Anaerobic degradation [Foreign]

Q 2.

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

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.

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

Q 6.

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 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.

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

Q 9.

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 10.

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

Q 11.

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

Q 12.

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

Q 13.

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

Q 14.

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

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.

(a) Name any five sources of water (other than rivers)
(b) Describe how, the water of river Ganga has been highly polluted.

Q 17.

Is water conservation necessary ? Give reasons.

Q 18.

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

Q 19.

Suggest a few measures for controlling carbon dioxide levels in the atmosphere.

Q 20.

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

Q 21.

Give two examples each of the following:

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

Q 22.

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

Q 23.

What is the main purpose of rainwater harvesting ?

Q 24.

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 25.

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

Q 26.

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

Q 27.

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 28.

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

Q 29.

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

Q 30.

Why should we conserve forests and wildlife ?

Q 31.

What is ‘Chipko Movement’? Why should we conserve forests? [All India]

Q 32.

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

Q 33.

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

Q 34.

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

Q 35.

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

Q 36.

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 37.

Name two fossil fuels.

Q 38.

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 39.

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

Q 40.

Explain briefly, how rainwater harvesting is done from open spaces around the buildings in city areas.

Q 41.

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

Q 42.

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 43.

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

Q 44.

(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 45.

(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 46.

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

Q 47.

Why should we conserve forests and wildlife?

Q 48.

Suggest some approaches towards the conservation of forests.

Q 49.

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

Q 50.

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