When administering chest compression to someone whose heart has stopped beating, the heel of the hand should be placed on the sternum on a line drawn between the nipples. why would it be a problem if the hand was placed at a lower part of the sternum?

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

What is one property that water and oil do not share