Q. What health problems are caused by lead?

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Q. What physical characteristics that makes pollutants hang around in the atmosphere instead of dispersing quickly?

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Q. Green plants are called

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Q. Plant eating animals are known as

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Q. Which largest cities of the world are famous due to their persistently high level of air pollution and photochemical smog?

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Q. In which areas the carnivores live in a small groups?

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Q. Oxides of Nitrogen causes

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Q. The primary producers has the ability to manufacture their own food by using

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Q. Animal eating plants are known as

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Q. What is the source of ground ozone?

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Q. The primary consumers are eaten by

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Q. Nutrients and energy absorbed by plants are passed along a chain of living things which is called

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Q. What produces high level of ground ozone?

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Q. The microorganism collectively known as

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Q. A food chain combine together to form a

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Q. The crustaceans eat

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Q. Which animals eat phytoplankton's?

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Q. The single celled algae are

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Q. The phytoplankton's manufacture their food by the process of

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Q. Animals at the top of food chain are

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