Exercies tat stregthen your upper arms, back, cheast, and shoulders

Exerciese that strengthen up your arms can be circular arm movement, one arm over the other. some exercises that pertain to back stretches are bending your back back and forth, and side to side. some chest stretches can be nothing really. And for your shoulders, you can do up and down shoulder stretches, one arm over the other, and so  many more. I hope this helps. 

D_u-m=b bells and Resistance BandsChinups

Pushups  

"observation" would be the correct answer

"air pollution" is the correct answer i believe