2 marks resource and development

 VERY SHORT TYPE QUESTION (2M)

1.what is Net sown Area?

Ans. The physical extent of land on which crops are sown and harvested is known as net sown area.

2. What is gross cropped area?

Ans. Area sown more than once in an agricultural year plus net slow area is known as gross cropped area.

3. What is wasteland?

Ans. Wasteland includes rocky, arid desert areas and land put to other non-agricultural uses

including settlements, roads, railways, industries etc.

4. How does land degradation occur?

Ans. Continuous use of land over a long period of time without taking appropriate measures

to conserve and manage it, result in land degradation.

5.How is over irrigation responsible for land degradation in Punjab?

Ans. Over-irrigation is responsible for land degradation due to water logging leading to

increase in Salinity and alkalinity in the soil.

6. How is cement industry responsible for Land degradation?

Ans. The mineral processing like grinding of limestone for cement industry is responsible for

land degradation.

7. How is mining activity responsible for land degradation in Jharkhand?

Ans.1 mining activity caused deep scars and traces of over burdening.

2 deforestation leads to land degradation.

8. Which Type of soil in India is most widespread and important?

Ans. Alluvial soil in India is most widespread and important.

9. Why is alluvial soil called fertile soil?

Ans. Mostly alluvial soil contains an adequate proportion of potash, phosphoric acid lime

whichare ideal for the growth of sugarcane, Paddy, wheat and other cereals and pulses

crops.