A. after the beginning of the Christian Era
Answer:
Are
Explanation:
It's the only one that makes sense
Answer:
The river is very clean.
Explanation:
It indicates that the river is very clean since if you have fish and other invertebrates, you have to have some algae and water plants. If the river is dirty, little plants will grow and there won't be many fish and other invertebrates.
One major accomplishment would be making my own car brand that runs on solar electricity and no fossil fuels and because of that it would reduce the amount of carbon dioxide in the atmosphere and the small step would be figuring out how to implement this too all cars so that this idea could be used at maximum efficency.
