Q. In environmentally friendly areas, oil drilling leads to

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Q. In which process the carbon is converted into carbondioxide and hydrogen to water?

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Q. In which process the opposite of photosnthesis occurs?

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Q. Which food is mainly used for the energy in the cells?

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Q. All food molecules contains

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Q. Each stage in the chain where energy is exchanged is called

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Q. In which trophic level herbivors are

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Q. In each trophic level, 90% of the energy is lost only 10 percent is passed on to the next level which is known as

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Q. In the process of respiration the energy produced is reused for other functions such as

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Q. Which three material are recycled in the nutrient cycle?

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Q. The bacteria and fungi living in the soil are

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Q. The key feature of ecosystem is

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Q. What stabilize the temperature of earth?

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Q. Oceans exerts a great influence of the planets

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Q. Which sea organism are single celled?

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Q. Phytoplankton's are the

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Q. Phytoplankton's convert the nutrients to organic compounds using

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Q. All the ocean life depends on the

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Q. Zooplanktons are small organisms that graze on the

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Q. The phytoplankton's synthesis their food through the process of

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