A)... Teaching sustainable practices.
I hope I am of some help.
Option D is the right answer .
This is because
-amino acids build up proteins
- two peptides make a dipeptide
- polypeptide is made up of long chain of peptides .
-peptide is a short chain of amino acid monomers linked by amide bond .
Answer:
By pulling down rocks and particles.
Explanation:
For example, in a cliff, where rocks are being pulled down by gravity. Their particles and small pieces of rock are forced to fall apart, slowly eroding down any rock or sediment.