Q. How much percent iron is found on the earths crust?

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Q. More light and oxygen is available in which part of the ocean?

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Q. Which precious metals and stones are used for jewelry and industrial cutting?

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Q. The required amount of water for plants is determined by

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Q. Lead is used for the manufacturing of

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Q. Copper is used for the manufacturing of

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Q. Iron is used for the manufacturing of

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Q. Which non-metallic minerals are used in fertilizers for agriculture?

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Q. Which metals and stones are used formation of jewelry?

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Q. The industrial revolution was based on which mineral?

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Q. Which rock is the raw material for making cement and concrete?

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Q. Which part of the ocean is the nutrient rich?

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Q. Name the worlds wettest place?

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Q. The world's most important fishing grounds are located on the

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Q. What is the average rain fall in deserts?

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Q. Which natural resources are available in the sea floor that are exploited by human?

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Q. What is the length of continental shelf?

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Q. Which level of the continental shelf varies area to area?

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Q. Which resource of ocean is very important for humans?

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Q. Why are fish stocks more plentiful on the continental shelf's?

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