Q. What are coral reefs?

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Q. Water vapor is carried up by air currents; when it gets cooled it leads to

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Q. Where coral reefs are formed?

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Q. Precipitation is prevented from falling directly on the ground by plants, this process is called

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Q. Coral reefs are a source of

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Q. In tourism, migration loss is reduced because of

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Q. Which industry provides jobs in hotels, transport, shops, and making craft goods?

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Q. Coral reefs are a combination of both

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Q. What are secreted by coral reefs?

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Q. What percentage of earth contains fresh water?

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Q. Which disease is transmitted by mosquitoes?

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Q. Cholera cause severe diarrhea, which leads to dehydration and eventually

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Q. Malaria kills 3000 people

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Q. Cholera is mainly caused by poor

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Q. Epidemics occurs, when water pipelines are disrupted after

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Q. What is injected by the mosquito to the bloodstream of human, when the next person is bitten

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Q. What are the example of water based disease?

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Q. The young and elders are mostly at risk of

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Q. To transfer the disease, the mosquito must bite a person, whose blood already contains the malaria parasite, which is known as

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Q. Diseases are not only costly in terms of treatment but also in terms of

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