Answer:
is a process in which deep, cold water rises toward the surface. ... Water that rises to the surface as a result of upwelling is typically colder and is rich in nutrients. These nutrients “fertilize” surface waters, meaning that these surface waters often have high biological productivity
Explanation:
The answer is D. 4 because its after perception
Leeches are parasitic because they suck blood not giving any benifit but harm.
Answer:
If this is a T or F question, it's probably true
Answer:
Survey
Explanation:
Because if you think about it carefully you really cant observe it. Your main goal is to compare them and with that we need a survey to get the data from both sides. Leaving us with the Survey
