Explain the difference in the composition of carbon dioxide, oxygen and water vapour between inhaled air and exhaled air .need the answer urgent this is school work

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

It is really hard for me right know

In the “analyzing the problem” step in the problem solving process, one should evaluate the causes, effects, and symptoms of the problem. select the best answer from the choices provided t f