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 water.
Answer:The populations of plants and animals will increase
Explanation: Since there will be no more fires there will be more room for plants to grow and more shelter for animals to live in.
The teacher warning could be the practice you are about to do can harm you in some way if that careful. Please let me know if I'm understanding this.
Answer:
Long necks were a random genetic change and resulted in the gradual increase of organisms with long necks.
I THINK C.) anaerobic bacteria