(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 ?
(a) Rainwater harvesting is the collection of rain water falling on land for recharging the ground water. The structures of rain water harvesting are: Khadin, Tanks, Kulhs, Ponds, Eris, Tals and Kattas.
(b) The various advantages of water stored in the ground are:
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)]
List any four disadvantages of using fossil fuels for the production of energy. [All India]
Give two examples each of the following:
How would these advantages differ from the advantages of using a long-term perspective in managing our resources?
Name any four categories of people who depend on the forest resources, mentioning major needs of each category. [Foreign]
Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment ?
What are non-renewable resources of energy? Give two examples of such resources. [Delhi]
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]
Why is the process of ‘reuse’ better than that of ‘recycling’ ?Why is the process of ‘reuse’ better than that of ‘recycling’ ?
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]
Suggest three ways to maintain a balance between environment and development to survive. [Delhi]
How did ‘Chipko Andolan’ ultimately benefit the local people? Describe briefly. [Foreign]
Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why ?
Although coal and petroleum are produced by degradation of biomass, yet we need to conserve them. Why?
List any two causes of our failure to sustain availability of underground water.[Foreign]
State the meaning of “sustainable management”. Reuse is better than recycling. How? [Foreign]
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 ?
(a) Name any five sources of water (other than rivers)
(b) Describe how, the water of river Ganga has been highly polluted.
(a) Locate and name the water reservoirs in figures (a) and (b).
(b) Which has an advantage over the other and why?
Why do you think there should be equitable distribution of resources? What forces would be working against an equitable distribution of our resources?
Why must we conserve our forests? List any two causes for deforestation to take place. [Delhi]
State whether the following statement is true or false :
Chipko Andolan was associated with the conservation of wild animals such as tigers and lions.
Explain why, despite good rains, we are not able to meet the demand for water of all the people in our country.
(a) What is a natural resource ? Name three important natural resources.
(b) Why do we need to manage our natural resources ?
State an instance where human intervention saved the forests from destruction. [Delhi(Q)]
What is meant by sustainable management? The environmentalists are insisting upon “sustainable natural resource management”. State its four advantages. [All India (C)]