Its B. 13- i just took the test and i got it right.
Answer: true
Explanation: Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later. Machines called automated external defibrillators (AEDs) can be found in many public places, and are available for home use. Hope this helps
No the brain is always developing as you learn or experience new things every single day.
Answer:
manifested in the form of death of the inhabitants due to European diseases, shortage of natural resources and an increase in revolutions and wars after uprisings in many countries
Explanation:
hope this helps