Which quotation from the passage supports the claim that hydrogen has the potential to be an affordable energy source in twenty years?

The people of mozambique and zimbabwe would be most likely to be affected by a change in flow of which of these rivers? a) congo b) niger c) nile d) zambezi

The second westward surge reached the: mississippi river, appalachian mountains, oregon territory

How does sociology account for the cause of drug and alcohol addiction?