The appropriate interrogative pronoun that should be used to complete the sentence is the word "whom". The sentence would be: Whom did you say about my work? We used whom because it indicates that the action is done to the speaker. In other words, whom is used when the verb is done by the object.
Answer:
Because the deep water brought to the surface is often rich in nutrients, coastal upwelling supports the growth of seaweed and plankton. These, in turn, provide food for fish, marine mammals, and birds. Upwelling generates some of the world's most fertile ecosystems.
Answer under, from, near, at
Explanation: