Question 1: Explain land use pattern in India and why has the land under forest not increased much since 1960-61?
Answer: About 45% of land is used as net sown area, i.e. for farming. About 22% of the land is under forest and the rest of the land is used for various purposes; like housing, recreation and industrial activities. Increasing population and subsequent increase in demand for resources is the main reason that forested land has not increased much during this period.
Question 2: Which one of the following type of resource is iron ore?
Answer: (d) Non-renewable
Question 3: Under which of the following type of resource can tidal energy be put?
Answer: (a) Replenishable
Question 4: Which one of the following is the main cause of land degradation in Punjab?
Answer: (b) Over irrigation
Question 5: In which one of the following states is terrace cultivation practised?
Answer: (d) Uttarakhand
Question 6: In which of the following states is black soil found?
Answer: (c) Gujarat
Question 7: Name three states having black soil and the crop which is mainly grown in it.
Answer: Maharashtra, Madhya Pradesh and Chhattisgarh are some states where black soil is found and cotton is the main crop grown on black soil.
Question 8: What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
Answer: Alluvial soil is found in the river deltas of the eastern coast. Alluvial soil is rich in potash, phosphoric acid and lime. It has a high water retention capacity and it is highly fertile soil.
Question 9: What steps can be taken to control soil erosion in the hilly areas?
Answer: Terrace farming and shelter belt plantation can be done to prevent soil erosion in hilly areas.
Question 10: What are the biotic and abiotic resources? Give some examples.
Answer:Biotic Resources – All living organisms in our environment are called biotic resources. For example, trees, animals, insects, etc.
Abiotic Resources – All non-living things present in our environment are termed as abiotic resources. For example – earth, air, water, metals, rocks, etc.
Question 11: How have technical and economic development led to more consumption of resources?
Answer: Economic development creates demand for various resources and technical development gives the knowhow to exploit those resources. Thus, technical and economic development; together lead to more consumption of resources.
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