3 April 2015

Resources : CBSE-NCERT Solution

CBSE NCERT Class VIII (8th) | Social Studies | Geography

Chapter  :  Resources 

CBSE NCERT Solved Question Answer

Q1.   Define resource ? Give examples.
A1. Resource :Anything which satisfies human needs is a resource .ex-water, textbook, air, land, vegetable etc.

Q2.    Explain two features of a resource ?
A2.     Utility :- Utility or usability is what makesan object or substance a resource.
Value :-All resources have a value. Valuemeans worth. Some resources have economic value, some do not. For example, metals may have an - economic value, a beautiful landscape may not.

Q3.    What are the two important factors that change substances into a resource ?
A3. 1)Time and 2) technology are two important factors that can  change substances into resources.
Both are related to the needs of the people. People themselves are the most important resource. It is their ideas, knowledge, inventions and discoveries that lead to the creation of more resource.

Q4.    What is the natural resource ?
A4.  Resources that are drawn from Nature and used without much modification are called natural resources. ex- the air we breathe, the water in our rivers and lakes, the soils, minerals are all natural resources.

Q5.    What is Human made resource ?
A5.  People use natural resources to make buildings, bridges, roads, machinery and vehicles, which are known as human made resources. Technology is also a human made resource.

Q6.    Why is human resource important ?
A6. 1) People can make the best use of nature to create more resources when they have the knowledge, skill and the technology to do so.
2)   People are human resources.
3)   Education and health help in making people a valuable resource.

Q7.    Define Sustainable development ?
A7. Carefully utilizing resources so that besides meeting the requirements of the present, also takes care of future generation.

Q8.    List the principles of sustainable development.
A8.    The principles of sustainable development are as follows:-
1)   Respect and care for all forms of life
2)   Improve the quality of human life
3)   Conserve the earth’s vitality and diversity
4)   Minimise the depletion of natural resources
5)   Change personal attitude and practices toward the environment
6)   Enable communities to care for their own environment.

Q9.    Distinguish between the following:-
1)   Actual and potential resource.
2)   Abiotic and Biotic resource.
3)   Renewable resource and Non renewablel resource.
4)   Ubiquitious and Localized resource.


Actual resource
Potential resource
Actual resourcesare those resources whose quantity is known and being used in the present.
Potential     resourcesare     those whose entire quantity may not be known and not being used at Presently  due  to  low  level   of technology.
Example-  The  rich  deposits  of coal in Ruhr region of Germany.
Example-Uranium      found      in Ladakh.

Abiotic resource
Biotic resource
Abiotic resources are non-living resource.
Biotic     resources     are     living resource.
Example-  soils  ,minerals  and rocks.
Example- Plants and animals.

Renewable resource
Non renewable resource
Renewable resources are those which get renewed or replenished quickly.
Non-renewable         resourcesare those which have a limited stock.
Example-   Water,   solar   and wind.
Example-Coal,    petroleum    and natural gas.

Ubquitious resource
Localised resource
Resources    that    are    found everywhere.
Resources which are found only in certain places.
Example-Air and water.
Example-Copper and iron- ore.

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