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Fuel cells use oxygen and gas, and produce energy and water
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When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page
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Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
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Which action is a reflex action. a. asking for coffe in a cold climate b. blinking when light is flashed in the eyes c. drinking water when thirsty. d. swallowing food e. taking an exam
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How to farmers could ensure that they only grow white flowers
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Fuel cells use oxygen and gas, and produce energy and water...
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