Acid rain is mainly caused by emissions of __________ in the atmosphere?
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In general, wind speed of 10 -13 kph caused_______?
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Water covers __________ of the Earth’s surface?
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Who is considered the founder of meteorology?
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Wind energy is the __________ energy.
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The energy value of food is measured in_______?
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The natural fats and oils are composed of_________?
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The instrument used to measure wind speed is?
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The source of oxygen in photosynthesis is
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The gas, commonly known as “laughing gas”, is
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