Answer:
A. SI units allow scientists to communicate around the world using the same
system of measurement.
Explanation:
Zinc deficiency affects the skin and gastrointestinal tract; brain and central nervous system, immune, skeletal, and reproductive systems. Zinc deficiency in humans is caused by reduced dietary intake, inadequate absorption, increased loss, or increased body system use. The most common cause is reduced dietary intake.
Jeez this is middle school really. covalently bond
3.125 i believe is the answer
Im pretty sure the answer is c