Answer :



Explanation:


1. With the rapid growth in population, the supply of food has to be increased. Thus more land has to be brought under cultivation. With the increase in population, there should be a steady growth in agricultural production to meet the needs of the ever-increasing population. As the land in cultivation becomes limited, more lands would be brought under cultivation to increase the agricultural productivity.


2. Desertification is the conversion of fertile and cultivable land into barren land by human and natural forces. Human activities like mining, quarrying and construction have aggravated desertification in many countries. The loss of fertile and natural land by desertification amounts to 35% of the land surface. Desertification affects a large number of people living in 110 countries. It occurs mainly in the semi-arid deserted regions.


3. Commercial energy sources cover all the major energy requirements of the world. The major component of commercial energy is the non-renewable energy resources like coal and oil. Non-renewable resources like coal and petroleum have only a fixed stock. They will be replenished but only after millions of years. Thus the ever-increasing population puts pressure on limited resources.


4. With the development of technology, new techniques like remote sensing can be used for analysing the change in the stock of natural resources occurring in the world. The depletion and accumulation of resources can be identified from the satellites launched using the remote sensing technology. With this objective, USA launched the LANDSAT satellite.


5. With the development of technology, new techniques like remote sensing can be used for analysing the change in the stock of natural resources occurring in the world. The depletion and accumulation of resources can be identified from the satellites launched using the remote sensing technology. With this objective, France launched the SPOT satellite.


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