Answer: I believe the answer is D because I know that you can't kill a eagle in the U.S. because it is a protected species.
If you are adding something to the water the concentration of water would drop, as it would start off as 100% water but then with the addition of another substance it would change that from 100% free to x% free, due to the water dissolving the substance.
Short Answer: When the sea is really deep and have a crazy waves around it.
Glucose and oxygen!!!
CO2 + Water in the presence of sunlight results in glucose + oxygen