Answer: Total volume of fat in his body is 
Explanation:
Density is defined as the mass contained per unit volume.

Given:
Density of fat cells = 
mass of fat cells = 20% of the mass of a 70 kg student's body is fat= 
Volume of fat = ?
Putting in the values we get:


Thus total volume of fat in his body is 
The sympathetic nervous system can accelerate heart rate. Decreases the movement of the large intestine, constricts blood vessels. Can cause piloerection aka goosebumps and perspiration also known as sweating a lot of times.
<span>In a couple of sentences, describe the cognitive effects secondhand smoke can have upon children.
</span><span>They inhale more than 4,000 toxic substances, they are passive smokers, they involuntarily inhale the smoke from one or more smokers.
DANGER: respiratory diseases coughing, wheezing, bronchitis, recurrent ear infections, asthma, risk of tooth decay in children, some tobacco dependence, risk of becoming future smokers.
passive smoking also aggravates preexisting chronic respiratory diseases, cystic fibrosis and is associated with a risk of sudden infant death syndrome.</span>
Your answer is A
Offering your friends something unhealthy or unsafe is considered peer pressure