C is correct.
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Explain:
Sugar and salt. Substances that do not dissolve in water are called insoluble.
Constructive and destructive processes
Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth
There's about 25,000gal daily
When you put the continents next to each other (on a map, of course) in a certain way, they put together almost perfectly. To add to that, there are fossils of the same land species on two different continents, suggesting that they used to be able to cross back and forth between the two land masses. This would make the most sense if the two continents were once part of the same continent.