Answer: 1) Adding fertilizers to soil
Explanation: Eutrophication is the presence of excess mineral and nutrients in water bodies which result into increased plant and algal growth.
Fertilizers containing nitrogen and phosphorus are used to make soil more fertile in farming. The overuse of fertilizers can cause these nutrients to runoff the farmer's fields and enter water bodies, thus leading to eutrophication.
He can repeat his experiment multiple times, and ask a friend to repeat it as well to see if they get the same answer.
Adding Baking Soda to Vinegar will create a chemical reaction. It will start to fizz and bubble as carbon dioxide gas is released.
The melting point for ice is at 32 degrees <span>Fahrenheit or O degrees Celsius.</span>
Answer:
Because no two elements have the same set of energy levels, different elements emit different colors of light. Energy is released when electrons move from higher energy levels to lower ones (visible light).
Explanation:
