Osteoporosis is a type of bone disease that occurs when the body does not produce enough new bone or when the body absorbs too much old bone. this disease often occurs when the body lacks calcium.

given this information, to which of the following factors is osteoporosis most likely related?
a.
virus
b.
bacteria
c.
heredity
d.
diet

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.