CPR, or cardiopulmonary resuscitation, is a first-aid technique to help save lives. It involves compressions of the patient’s chest cavity. Which description is the best description of the functions of chest compressions in CPR?

answer choices :
Chest compressions are done to pump the heart.
Chest compressions are done to strengthen the rib bones.
Chest compressions increase carbon dioxide inhalation.
Chest compressions allow the patient's muscles to wake up.

Along with the kidneys, the ureters, bladder, and urethra make up the urinary system. match each function or description to the appropriate structure.

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

Osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? view available hint(s)osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? the first law of thermodynamicsthe difference in the height of water columns on either side of a selectively permeable membranethe difference in water concentration across a selectively permeable membranethe difference in sugar or ion concentration across a selectively permeable membrane