Answer:
A.The sound becomes louder.
And
C.The sound waves get further.
Explanation:
Louder the sound it will travel long.
Answer:
Decreases
Explanation:
The particles have more space to move and will be less likely to collide.
The answer to the question is D
Answer:
b. Loose clothing and jewelry is more likely to impede movement, or accidentally knock materials over, causing a spill or other accident.
Explanation:
Hello,
During the laboratories, a high dexterity is required, thus, such accessories, when you move or change your duty, could touch other materials or act out of your control resulting in spillages and constricting your proper movements and skills, that is why considering the lab safety policy, we must take those artifacts away from the chemistry lab.
Best regards.