Do you mean where do people fall the most frequently? If so, it's usually roofs.
The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.
Hope this is helpful!
What is the difference between velocity and acceleration?
Answer: Out of all the options shown above the one that best describes difference between velocity and acceleration is answer choice B) Velocity is how fast an object moves and acceleration is the rate of change in velocity.
I hope it helps, Regards.
