Its A= They can release toxic elements into the groundwater or surface water, hope this helped you out some bit :)
All life can be classified into three domains: Bacteria, Archaea, and Eukarya. Organisms in Bacteria, Archaea, and Eukarya each have adenine, thymine, guanine, and cytosine bases forming their DNA.
The answer will be option C.
Answer:
true for the first one and I think false for the 2nd one