Because if you exercise you sweat and sweat is made of salt water so if you drink lots of plain water theres not alot of salt left in your body
D. self-confidence makes you appear important in the eyes of other people, this is because if you have no self-confidence, they don't concentrate that much on you, and you can't trust yourself, your feelings, or what you do. so then other people see you as 'not needed'
False, because some viruses can kill cells
Answer:
Increased use of alcohol, change in behaviors, underlying mental health disorder
Explanation:
The blood (circulatory system) carries oxygen to your lungs (respiratory system). Oxygen binds to the hemoglobin molecule in your blood and is carried back to the heart, then pumped out to the other parts of the body.
Hope this helps :)
