Every year, about 3 million hectares of cropland are made unusable by this process, which takes soil away from the surface via wind and water.Multiple choice question.ConversionUrbanizationErosion

Waste land includes………………………Select an answerALand left without cultivation for one or less than one agricultural yearBLand put to non-agricultural usesCrocky, arid and desert areasDLand left uncultivated for the past 1 to 5 agricultural years

is the process of converting land to a desertlike ecosystem because of overuse.

By then, some of the wastelands in the village had been converted to cultivable land. There exists no further scope to increase farm production by bringing new land under cultivation.

SavedThe grower currently uses a siphon irrigation system that has an efficiency of 65%, which according to Table 2 above is about average. Use this information and your answers to question 12 & 13 to calculate how many hectares the grower should plant. Show your answer and working out in the space below.

Land pollution in which land is unsuitable for farming due to high salt contentis known asans.CarbonizationSalinizationOxygenationDesertification