I believe the answer is A) 10 ions of Mg and 20 ions of F
It looks like an emojiii , it’s cute lol
D i reccomend searching before entering answer
I think that this is pretty much just an opinion question. As long as you have evidence to back it up, you should be fine!!
Answer:
Most planktonic life in the ocean exists in an area that is very vulnerable to marine pollution. This area is called the coral reef.
Explanation: