Q. In hydroelectricity power_________________

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Q. Solar panels generate electricity.

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Q. In order to produce solar energy during sunlight, where the energy is stored in the batteries?

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Q. How many forms of fossil fuels are there________________

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Q. According to WHO, how many premature deaths annually linked to air pollution causing by the burning of fossil fuels?

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Q. Energy in the form of heat and light is obtained by________________

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Q. SI unit for energy is_____________

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Q. Trapped heat inside the earth is known as_______________

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Q. A continuous area of land surrounded by ocean is called__________________

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Q. How many major continuous landmass are there?

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Q. Land capable of being ploughed and used to grow crops is called as________________

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Q. Out of the total land area, how many million hectares of land suffer from degradation?

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Q. Wearing away of a field’s topsoil by the natural physical forces of water and wind is known as_____________

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Q. The greater the intensity and duration of a rainstorm, the higher the erosion potential.

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Q. Estimate of the ability of soils to resist erosion, based on the physical characteristics of each soil is known as__________________

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Q. Low lying tract of land enclosed by dikes that forms an artificial hydrological entity is known as_________________

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Q. In Germany marshes separated from the surrounding water by a dike are known as______________

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Q. Hydroponics is a technique of growing crops without__________________

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Q. The land which is abandoned and declared as not good for cultivation anymore is known as_____________

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Q. The thin layer of grainy substance covering the surface of the earth is called as_______________

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