When a body is connected to the earth, then electrons from the earth, fl ow into the body. It means that the body is [1] (a) unchanged (b) an insulator (c) positively charged (d) negatively charged.

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.

Find the missing probability in the table below a.0.10 b.40 c.0.80 d. 0.20

What powdery mineral is a health hazard when airborne?