Looking at the following answers, and considering the definition of a biological community I believe the answer is D.
Answer:
C Group 11
Explanation:
Group 11, by modern IUPAC numbering, is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), and gold (Au).
These elements show highest electrical conductivity.
Radiation is s very powerful substance and can cause major health problems do the health care professionals limit the use to help not create sickness
The answer is B...
because any of the others could have an opinion based answer but B will always be the same its a fact not opinion.
DR is the correct answer
hope this helps
