can i get imp.question with answers from the lesson Resources and Development.(geography class)
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.5. Explain what is meant by national resources and individual resources? [2010 (T-1)]
Ans. National Resources :- Technically all resource belong to the nation. The country has legal powers to acquire even private property for public good. All the minerals, water, forest, wildlife, land without the political boundary and occanic area up to 12 Nautical miles from the coast are National Resources.
Individual Resources :- The resources that are owned by individuals - like farmering own farms, residential plots, plantation, and all household goods, etc.
Q.6. Explain the resources on the basis of origin and exhaustibility. [2010, 2011 (T-1)]
Ans. Resources on the basis of origin :-
(a) Biotic :- Those resources which are available in biosphere and have life such as human beings flora and fauna etc.
(b) Abiotic :- All those things which are non-living are called abiotic resources. For example, rocks, soils and minerals
Resources on the Basis of Exhaustibility :-
(a) Renewable resources :- The resource which can be renewed are Renewable resources. For Example water, forest wind etc
(b) Non-renewable resources :- These resources occur over a very long time and get exhausted minerals and fossil fuels are examples of these resources.
Q.7. What is soil erosion? Write two human activities that lead to soil erosion. [2010 (T-1)]
Ans. The denudation of the soil cover and subsequent washing down is described as soil erosion.
Two human factors leading to soil erosion are :
(a) Deforestation :- Due to heavy deforestation, soil erosion is increasing.
(b) Overgrazing :- In many regions people still practise grazing of cattle, goats and sheap. Gradually this leads to soil erosion.
Q.8. Explain any three steps that can be taken to solve the problem of land degradation? [2010, 2011 (T-1)]
Ans. (a) Contour ploughing : Ploughing along the contour lines can decelevate the flow of water down the slopes.
(b) Terrace cultivation : Steps can be cut out on the slopes, making terraces. Terrace cultivation restricts erosion.
(c) Strip cropping : Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind reducing its effect.
Q.9. Explain the role of human in resource development. [2010, 2011 (T-1)]
Ans. Human is at the centre of resource development. Actually all resources become resource only only when they are put to use by humans. It is human who makes natural things usable with help of technology. Had no technology been there, development would not have been possible. There are regions where natural resources are in abundance but regions not developed for example Africa. But if human are developed they make the region developed with technology, for example, Japan.
Q.10. Explain the importance of conservation of resources. [2010 (T-1)]
Ans. Conservation of resources is necessary because of following reasons :
(i) Resources are vital for any developmental activity but irrational consumption and overutilisation of resources may lead to socio-economic and environmental problems. To overcome these problems, resource conservation at various level is important.
(ii) If resources are not conserved at this point of time, then our future generations will be left with no resources at all. So it is very important to think for conservation of resources.
Q.11. Why is it important to raise the land area under forests? [2010 (T-1)]
Ans. It is very important to raise area under forest because forests are essential for maintenance of the Ecological balance. The livelihood of millions of people who live on the fringes of these forests depends upon it. Forest also provides a number of goods that are required for industry and medicines etc. Forest also helps in soil conservation and rainfall.
Q.12. Describe any three main characteristics of arid soil of India. [2010 (T-1)]
Ans. There characteristics of Arid soils in India are —
(i) They range from red to brown in colour
(ii) They are generally sandy in texture and saline in nature
(iii) In some areas salt content is higher and common salt is obtained by evaporation of water.
Due to the dry climate, high temperature, evaporation is faster and the soil lacks humans and moisture.
Q.13. Highlight any three problems associated with the indiscriminate use of resources by the human beings. [2010, 2011 (T-1)]
Ans. Indiscriminate use of resources creates following problems :–
(i) Global ecological crises such as global warming.
(ii) It has also led to depletion of the ozone layer.
(iii) It has also caused environmental pollution and land degradation.
The resultant threat to ecology and environment has put the future of our planet in danger. Natural disasters have become very frequent. Many species of flora and fauna have already become extinct.
Ans. National Resources :- Technically all resource belong to the nation. The country has legal powers to acquire even private property for public good. All the minerals, water, forest, wildlife, land without the political boundary and occanic area up to 12 Nautical miles from the coast are National Resources.
Individual Resources :- The resources that are owned by individuals - like farmering own farms, residential plots, plantation, and all household goods, etc.
Q.6. Explain the resources on the basis of origin and exhaustibility. [2010, 2011 (T-1)]
Ans. Resources on the basis of origin :-
(a) Biotic :- Those resources which are available in biosphere and have life such as human beings flora and fauna etc.
(b) Abiotic :- All those things which are non-living are called abiotic resources. For example, rocks, soils and minerals
Resources on the Basis of Exhaustibility :-
(a) Renewable resources :- The resource which can be renewed are Renewable resources. For Example water, forest wind etc
(b) Non-renewable resources :- These resources occur over a very long time and get exhausted minerals and fossil fuels are examples of these resources.
Q.7. What is soil erosion? Write two human activities that lead to soil erosion. [2010 (T-1)]
Ans. The denudation of the soil cover and subsequent washing down is described as soil erosion.
Two human factors leading to soil erosion are :
(a) Deforestation :- Due to heavy deforestation, soil erosion is increasing.
(b) Overgrazing :- In many regions people still practise grazing of cattle, goats and sheap. Gradually this leads to soil erosion.
Q.8. Explain any three steps that can be taken to solve the problem of land degradation? [2010, 2011 (T-1)]
Ans. (a) Contour ploughing : Ploughing along the contour lines can decelevate the flow of water down the slopes.
(b) Terrace cultivation : Steps can be cut out on the slopes, making terraces. Terrace cultivation restricts erosion.
(c) Strip cropping : Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind reducing its effect.
Q.9. Explain the role of human in resource development. [2010, 2011 (T-1)]
Ans. Human is at the centre of resource development. Actually all resources become resource only only when they are put to use by humans. It is human who makes natural things usable with help of technology. Had no technology been there, development would not have been possible. There are regions where natural resources are in abundance but regions not developed for example Africa. But if human are developed they make the region developed with technology, for example, Japan.
Q.10. Explain the importance of conservation of resources. [2010 (T-1)]
Ans. Conservation of resources is necessary because of following reasons :
(i) Resources are vital for any developmental activity but irrational consumption and overutilisation of resources may lead to socio-economic and environmental problems. To overcome these problems, resource conservation at various level is important.
(ii) If resources are not conserved at this point of time, then our future generations will be left with no resources at all. So it is very important to think for conservation of resources.
Q.11. Why is it important to raise the land area under forests? [2010 (T-1)]
Ans. It is very important to raise area under forest because forests are essential for maintenance of the Ecological balance. The livelihood of millions of people who live on the fringes of these forests depends upon it. Forest also provides a number of goods that are required for industry and medicines etc. Forest also helps in soil conservation and rainfall.
Q.12. Describe any three main characteristics of arid soil of India. [2010 (T-1)]
Ans. There characteristics of Arid soils in India are —
(i) They range from red to brown in colour
(ii) They are generally sandy in texture and saline in nature
(iii) In some areas salt content is higher and common salt is obtained by evaporation of water.
Due to the dry climate, high temperature, evaporation is faster and the soil lacks humans and moisture.
Q.13. Highlight any three problems associated with the indiscriminate use of resources by the human beings. [2010, 2011 (T-1)]
Ans. Indiscriminate use of resources creates following problems :–
(i) Global ecological crises such as global warming.
(ii) It has also led to depletion of the ozone layer.
(iii) It has also caused environmental pollution and land degradation.
The resultant threat to ecology and environment has put the future of our planet in danger. Natural disasters have become very frequent. Many species of flora and fauna have already become extinct.
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