List the products of combustion of fossil fuels. What are their adverse effects on the environment? [All India]
When fossil fuels are burnt, carbon dioxide, water, oxides of nitrogen and oxides of sulphur are formed. If the combustion takes place in insufficient air, then carbon monoxide is formed instead of carbon dioxide. Of these products, the oxides of sulphur and nitrogen and carbon monoxide are poisonous gases and carbon dioxide is a greenhouse gas.
(a) Name the major industries which are based on forest produce.
(b) State the main aim of the management of forests and wildlife.
(c) Name the four main stakeholders in the management of forest resources.
(a) What is a natural resource ? Name three important natural resources.
(b) Why do we need to manage our natural resources ?
What are non-renewable resources of energy? Give two examples of such resources. [Delhi]
Name the products of combustion of fossil fuels like coal and petroleum products. How do they affect us and our environment ?
Why must we conserve our forests? List any two causes for deforestation to take place. [Delhi]
(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 ?
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.
What is meant by sustainable management? The environmentalists are insisting upon “sustainable natural resource management”. State its four advantages. [All India (C)]
Name the person who is most remembered for the protection of Khejri trees in Rajasthan.
Choose one term from the following which include all others :
coal, natural gas, fossil fuels, petroleum
State two changes you can make in your habits to reduce the consumption of electricity or water. [All IndiaiC)]
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]
How would these advantages differ from the advantages of using a long-term perspective in managing our resources?
State an instance where human intervention saved the forests from destruction. [Delhi(Q)]
Give two examples each of the following:
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]
(a) Locate and name the water reservoirs in figures (a) and (b).
(b) Which has an advantage over the other and why?
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]
With which process are the following ancient structures associated ?
Kulhs, Eris, Surangams, Kattas, Pynes
Although coal and petroleum are produced by the degradation of biomass, even then we need to conserve them. Why ?
List the products of combustion of fossil fuels. What are their adverse effects on the environment? [All India]
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
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 ?
Give one example to show how the participation of local people can lead to the efficient management of forests.
Explain briefly, how rainwater harvesting is done from open spaces around the buildings in city areas.
Why do you think there should be equitable distribution of resources? What forces would be working against an equitable distribution of our resources?
How do advantages of exploiting natural resources with short-term aims differ from the advantages of managing our resources with a long ¬term perspective? [Foreign]
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]
Name any four categories of people who depend on the forest resources, mentioning major needs of each category. [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 ?