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:
The answer would be the first one :)
The 3rd,4th, and 5th are correct.
It will be Control. Part of the experiment used to show that the results of an experiment is really due to the conditions being tested.
Chemical energy into kinetic energy
