They are made by melting glaciers
Hope this helps!! :)
Answer:
The elements are used because the half lives can denote when it was trapped in the rock.
Explanation:
The half lives of different elements can help to determine when the fossil was created and without it, it would be much harder to determine the ages of fossils.
Indirect effects include pluvial lakes, changes in sea level, and isostatic depression.
I believe the answer is E. d41 because it goes a11, A12, b21, B22, c31, C32, then it goes lowercase d41 and then the next one is going to upper case D42.
Hope this helps.
