Lets Revise- CLASS X

1MARK QUESTIONS
1.Define the following terms-international resources,sustainable development,stock,community resource,sheet erosion and shelter belt.
GIVE ONE WORD FOR THE FOLLOWING-

• Name the soil with high fertility.
• Soil formed by lava flow.
• Soil which less humus content due to high temperature and heavy rainfall.
• Land left without cultivation for one or less than one year.
• Area having tree cover.
• State in which land degradation is due to over irrigation.
• What are duars,chos,and terai.
• Name the diversion channels in western himalayas for agriculture.
• Name given to rain water in rajasthan.
• Give the name of village in karnataka where roof top water harvesting system has been promoted.
• What is the name given to a feature which is built across flowing water.

4MARKS-EXPLAIN THE FOLLOWING

1. What is resource development?Mention three problems linked to development of resource.
2. Distinguish between black and laterite soil on basis of texture, chemical property and distribution.
3. Give the reasons for water scarcity before and after independence.
4. Besides multipurpose river valley projects what are the other methods of concerving and managing water resources in india.
5. Subsistance agriculture has changed to commercial agriculture,explain the various reforms.

GO GREEN

ACONCERN

Efforts to cool our surrounding with increasing temperature of our planet,

Besides large scale plantations lets make an small effort of making our homes green by growing potted plants according to the space available,

specially the rooftops with the increasing concrete jungles,which will not only add to the green cover in small areas but also help in lowering the temperature of the houses and the dependence on cooling devices,helping in conservation of energy resources.

In near future it has to be made compulsory like rain water harvesting

in most of the urbanised setups of India to conserve the environment at small levels.

IF WE STEAL THE GROUND FOR A BUILDING WE CAN GIVE IT BACK TO NATURE ON THE ROOF.