Answer:
what is the question dude really
you didn't even wrote the question
One redo our could be a body of water like a dam as such, and another is something like a retention pond, taking in water
Th earth scientists have improved our understanding with the environment because of their studies in which they had shown better understanding and explanation of occurrences with the means of having to provide not only explanation nor visuals but also providing proof of these mere existence that made people believe and understand the environment.
I think its ADP because it breaks off the third phosphate.