Answer:
There are more nutrients available in estuaries. There are more nutrients available in estuaries.
Explanation:
the answer is A
if layer 4 is at the very bottom it would be c
Answer:6.022 x 10^23 molecules
Explanation: Since one mole of any chemical compound always contains 6.022 x 10^23 molecules, you can calculate the number of molecules of any substance if you know its mass and its chemical formula.