You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
1 and 5, Solvent, and yh I am not sure but I think so
Answer:
The oxygen-rich surface water blends with the deeper, depleted water. The dissolved oxygen concentration in the mix can be too low to support life in the pond. Both fish and plankton can die from low dissolved oxygen following a turnover. ... Thus, turnover can happen if a cold rain and wind cools the surface wate
Explanation:
