Ungraded longitudinal profile
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Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.

What must happen for new french words to be published in official dictionaries? a. they must be approved by the french academy b. they must be voted on by the people of france c. they must be used by famous french writers d. they must be used by philosophers a. they must be approved by the french academy

Where does the availability of water pose the greatest problem