Which statement is true about the factors affecting physical fitness? a. we have no control over any of the factors. b. we have total control over all the factors. c. the factors that affect physical fitness only apply to athletes. d. we can control some of the factors, but not all of them.

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.