2. A student tested the pH of an unknown solution and the reading was 13.5. Which statement is true?

A. The solution is a strong base.

B. The solution is a strong acid.

The solution is a weak base.

D. The solution is a weak acid.

Which answer lists the fundamental forces in order from strongest to weakest

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Nonpoint source pollution is difficult to control because it