Q. How naural process causes desertification?

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Q. How farmers over exploit their land by

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Q. Dry, sunny weather often results from

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Q. Why monoculture creats soil erosion?

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Q. What stretagies can be used for the conservation of soil?

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Q. What method is used in mountain areas for soil conservation?

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Q. Mixed cropping helps to reduce

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Q. Which country in africa, 250,000 hectares are being lost to desertification each year?

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Q. Tropical rainforest is the natural vegetation cover in

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Q. Why organic matter is aadded to the soil?

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Q. What causes desertification ?

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Q. What is formed by ploughing block the downward movement of water on slops?

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Q. What is the impact of deforestation on soils?

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Q. What are the human activities that causes desertification?

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Q. In low pressure, the moisture in the air

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Q. The air pressure is measured by

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Q. In high pressure, the air

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Q. In the high pressure, the air warm-up and becomes

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Q. Where the pressure is greatest?

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Q. What percent of nuclear energy contributed to the total world commercial energy consumption in 2007?

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