Science Practice Quiz 107

Q1.As per the National Forest Policy (1952), what percentage of the geographical area was considered desirable for forest cover in the country?

A. 33 percent B. 23 percent C. 43 percent D. 13 percent

Q2.According to the National Forest Policy (1952), the desired forest area was considered essential for which primary purpose?

A. Maintenance of the ecological balance B. Promoting tourism and recreation C. Generating revenue for the government D. Providing timber for industrial use

Q3.What is identified as a primary cause of land degradation over a long period?

A. Excessive rainfall and floods B. Continuous use of land without appropriate conservation measures C. Natural geological processes D. Rapid population growth

Q4.In states like Punjab, Haryana, and western Uttar Pradesh, what is the primary reason for land degradation leading to increased salinity and alkalinity in the soil?

A. Deforestation B. Overgrazing C. Over irrigation D. Mining activities

Q5.What is the effect of the huge quantity of dust generated from mineral processing (like grinding limestone for cement industry) when it settles on the land?

A. It enhances the fertility of the soil. B. It retards the process of infiltration of water into the soil. C. It promotes the growth of specific plant species. D. It increases the soil's water retention capacity.

Q6.Which of the following is a method to check land degradation specifically in arid areas?

A. Proper discharge of industrial effluents B. Control of mining activities C. Stabilisation of sand dunes by growing thorny bushes D. Promoting intensive agriculture

Q7.Which of the following natural forces contributes to the formation of soil?

A. Volcanic eruptions B. Actions of running water C. Earthquakes D. Tsunami waves

Q8.In recent years, what has become a major source of land and water pollution in many parts of the country?

A. Agricultural runoff B. Domestic sewage C. Industrial effluents as waste D. Atmospheric dust

Q9.The text describes soil as which of the following?

A. A static geological formation B. A simple chemical compound C. A living system D. A non-renewable resource

Q10.According to the provided text, soil primarily consists of which two types of materials?

A. Organic and metallic B. Organic and inorganic C. Mineral and gaseous D. Water and air

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Science Practice Quiz 107