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Question generated: Many cars are equipped with a catalytic converter, a device that helps remove hydrocarbons and oxides from car exhaust. As a result, this device helps to

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Question generated: Which graph is best to present data collected on yearly water usage in the United States?

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Question generated: Volcanic eruptions early in Earth's history are believed to be responsible for a large proportion of the matter now found in which Earth structure?

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Question generated:
Which is a nonrenewable resource?