Answer:
The damage to ozone layer is done by halogens such as Chlorine and Bromine.
The level of organization is plants, coral and water. Water came first.
Answer:
A.
Explanation:
It shows a clear view of what a group of cells of a plant would be like.
The answer for this question is B
You can use dimensional analysis to figure this out.
× 
= 3 grams
If done correctly, ml and ml will cancel out, leaving you with grams.
If you don't know dimensional analysis, simply multiply <em>3 ml</em> by <em>1 grams </em>and that should still get you 3 grams.