Answer:
No sounds can be heard in outer space because sound waves require a medium, such as air, to travel through.
Explanation:
The density decreases because you are coming closer to the atmosphere and away from the center of the earth
Too much socializing can affect work production and accuracy.
The correct terms to fill in the blanks would be contracts and dilates. In stressful situations, the sympathetic nervous system contracts the arteries of the circulatory system resulting to the dilation of the pupils of the eyes. Also, during these situations, the blood sugar levels are raised since the hormones for stress kick in to combat the stress which in turn raises the blood sugar.
