Answer:
water flows easier in the mountains because there is less air pressure.
The two systems that work together to deliver oxygen are D, respiratory and cardiovascular
Falling from an airplane.
Answer:
20.The first factor is the amount of charge on each object. The greater the charge, the greater the electric force. The second factor is the distance between the charges. The closer together the charges are, the greater the electric force is
Explanation:
I think the elevation of Y and Z are the following:
<span>Y=3200,
Z=2900 </span>