Resources and Development (Class - X)

This is the correct answer as about 27 per cent of the area of the country is the plateau region which possesses rich reserves of minerals, fossil fuels and forests.

This is the correct answer as public parks or play grounds etc. in urban and rural areas are de facto accessible to all the people living there. Thus, these are community owned.

This is the correct answer as all the others are global ecological crises that have occurred due to indiscriminate exploitation of resources. Population explosion has put a strain on already shrinking resources.

This is the correct answer as waste land includes rocky, arid and desert areas.

This is the correct answer. The mineral processing like grinding of limestone for cement industry and calcite and soap-stone for ceramic industry generate huge quantity of dust in the atmosphere. It retards the process of infiltration of water into the soil after it settles down on the land.

This is the correct answer. An institutional set up is organised at the time we evolve a plan for developing the available resources.

This is the correct answer. In the upper reaches of the river valley, i.e. near the place of the break of slope, the soils are coarse. Such coarse alluvial soils are more common in piedmont plains such as Duars, Chos and Terai.

This is the correct answer as black regur soil is also known as black cotton soil.

This is the correct answer as black soil is made up of clayey material that becomes sticky when wet and is difficult to work on unless tilled immediately after the first shower or during the pre-monsoon period.

This is the correct answer. Alluvial soil has an adequate mix of potash, phosphoric acid and lime which makes it very fertile.

This is the correct answer as snow on mountain soils causes them to become acidic with a low humus content.

This is the correct answer. After adopting appropriate soil conservation techniques, particularly in the hilly areas of Karnataka, Kerala and Tamil Nadu, laterite soil is very useful for growing tea and coffee.

This is the correct answer. The land that is unfit for cultivation is called bad land.

This is the correct answer. Black soil is made up of lava flows. Parent rock material and climatic conditions are responsible for this type of soil. It is found in the Deccan trap region of the Deccan plateau.

This is the correct answer. The desired area under forest cover as specified in the National Forest Policy, 1952 is 33% of total geographical area, though it is lesser than that in reality.

This is the correct answer. Ploughing in a wrong way, i.e. up and down the slope, forms channels for the quick flow of water, leading to soil erosion. Ploughing along the contour lines can decelerate the flow of water down the slopes. This is called contour ploughing.

This is correct. Fallow land is left uncultivated for the past 1 or less than 1 agricultural year.

This is correct. The oceanic resources beyond 200 nautical miles of the Exclusive Economic Zone are considered open ocean and are international resources.

This is the correct answer as Arunachal Pradesh has an abundance of water resources, but lacks in infrastructural development.

This is the correct answer choice as Agenda 21 was adopted at the Rio de Janeiro Earth Summit, 1992.

This is the correct answer. India has got the right to mine manganese nodules from the bed of Indian Ocean from the area which lies beyond the exclusive economic zone and lies in the international waters.