Resources and development Geography Chapter- 1 NCERT solutions for Class 10 1. Multiple choice questions: (i) Wh...
Resources and development
Geography Chapter- 1
NCERT solutions for Class 10
1. Multiple choice questions:
(i) Which one of the following types of resources is iron ore?
a. Renewable
b. Biotic.
c. Flow
d. Non-renewable
Ans: Non-renewable
(ii) Under which of the following type of resource can tidal energy be put?
a. Replenishable
b. Abiotic
c. Human-made.
d. Non-recyclable
Ans: Replenishable
(iii)Which one of the following is the main cause of land degradation in Punjab?
b. Deforestation
c. Over irrigation
d. Overgrazing
Ans: Over irrigation
(iv) In which one of the following states is the terrace cultivation practiced?
b. Haryana
c. Plains of Uttar Pradesh
d. Uttaranchal
Ans: Uttaranchal
(v) In which one of the following states is the black soil found?
a. Jammu & Kashmir
b. Gujarat ( Or Maharashtra)
c. Rajasthan
d. Jharkhand
Ans: Gujarat (Or Maharashtra)
2. Answer the following questions in about 30 words:
(i) Name three states having black soil and the crop which is mainly grown in it.
Ans: The states of Gujarat, Maharashtra and Madhya Pradesh have black soil. Cotton is mainly grown in this soil.
(ii) What type of soil is found in the river deltas of the Eastern Coast? Give three main features of this type of soil.
Ans: Alluvial soil is found in the the river deltas of the eastern coast.
i) It consists of various proportion of sand, silt and clay.
ii) It is very fertile therefore good for cultivation.
iii) It contains adequate quantity of of potash, phosphoric acid and lime content.
(iii) What steps can be taken to control soil erosion in the hilly areas?
Ans: In hilly areas soil erosion can be controlled by contour ploughing which is ploughing along contour lines, using terrace farming techniques, and using strip cropping which is growing stripes of grasses to check soil erosion by wind and water.
(iv) What are biotic and abiotic resources? Give some examples.
Ans: The resources which are obtained from the biosphere and have life are called biotic resources.Example- human beings, plants, fisheries, livestock etc.
Abiotic resources consist of all those things which are composed of non-living things.Example: rocks, metals, land, water,soil etc.
3. Answer the following questions in about 120 words.
(i) Explain land use pattern in India and why has the land under forest not increased much since 1960-61?
Ans: Land resources in India are primarily divided into agricultural land, forest land, pasture and grazing land, and wasteland. Wasteland includes rocky, arid and desert areas and land used for non-agricultural purposes like housing, roads, industry, etc.The pattern of the net sown area varies greatly from one state to another. It is over 80 per cent of the total area in Punjab and Haryana and less than 10 per cent in Arunachal Pradesh, Mizoram, Manipur and Andaman Nicobar Islands. Forest area in the country is far lower than the desired 33 per cent of geographical area, as it was outlined in the National Forest Policy (1952).Continuous use of land over a long period of time without taking appropriate measures to conserve and manage has resulted in land degradation.
Improper use of forest land has led to land degradation and made conservation of forests difficult. Land under forest not increased much since 1962-61 due to deforestation, mining building roads, dams, bad management of land etc.
(ii) How have technical and economic development led to more consumption of resources?
i) To fulfill the need of increasing population large scale production led to over utilisation of resources.
ii) With better tools,transport and knowledge humans are able to use the resources easily. Thus, technological advancement led to greater exploitation of resources.
iii) Due to improved medical and health resources the death rate reduced which led to population growth which led to huge consumption of resources.
I hope this will help you.
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