How have humans offset the balance of the carbon cycle
(explain how you got that letter choice)
a. cutting trees which increase the amount of carbon available for food/
b. cutting trees which will increase carbon dioxide in the atmosphere.
c. cutting trees which reduces available oxygen for humans.
d. cutting trees which will reduce water in the atmosphere.

What is thought to have caused the mass extinction at the end of the cretaceous period?

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to 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? 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.

True or false multiple lane changes must be done individually going through the same procedures for each lane change