D. A part of an ecosystem where an organism can survive
When molecules move from one phase to another they are still the same substance. There is water vapor above a pot of boiling water. ... Even though the physical state changed, the chemical properties were the same. On the other hand, a chemical change would build or break the chemical bonds in the water (H2O) molecules.
Answer:
There are no options to answer your question.
Explanation:
I would say
O sediment flowing down a slope
If there a too many producers but not enough secondary consumers, the ecosystem becomes unbalanced and the energy is unused. So the number needs to balanced for the ecosystem to be as well.