<span>The correct answer is b. ocean and freshwater system conditions generally remain constant throughout the year. This is not true because they are very different. For examples, freshwater rivers can completely freeze during the winter while oceans can't freeze completely, not even a bit. Also, the animals inside have completely different body structures to fight these changes.</span>
Answer:
Plate boundaries
Explanation:
earthquakes move tectonic plates and plate boundaries
D hope that helps good day
Answer:
The most common nutrients causing eutrophication are nitrogen and phosphorus. The main source of nitrogen pollutants is run-off from agricultural land, whereas most phosphorus pollution comes from households and industry, including phosphorus-based detergents.
Explanation:
Answer:
amino acids can build proteins!
