The Sun seems to move across the sky each day because of the rotation of the Earth on its axis. The Sun's path across the sky also appears to change over the different seasons of the year. Why does the Sun's path change over the different seasons?
A.
because the Earth is tilted and revolving around the Sun
B.
because the Sun is tilted and rotates around its axis
C.
because the Sun is tilted and revolving around the Earth

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

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.