Answer:
To study objects that are way too small
The influx of nitrogen is not healthy for an aquatic ecosystem because it is not something that normally appears in that environment. It can damage the plants and animals that live in the ecosystem. It can also affect the water and soil were the plants and animals live.
Questions? What needs to be answered
Answer:
All of the following processes require the cell to use ATP energy, except passive transport. The correct option among all the options that are given in the question is the third option or option "passive transport". I hope that this is the answer that you were looking for and it has actually come to help you.
Explanation: