The table lists the salinity of ocean water at four different locations. based on the information in the table, which of these locations is most likely nearest to the mouth of a river?

a. location 1

b. location 2

c. location 3

d. location 4

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?