Answer:
Reflection of sound waves also leads to echoes. Echoes are different than reverberations. Echoes occur when a reflected sound wave reaches the ear more than 0.1 seconds after the original sound wave was heard. ... Reflection of sound waves off of curved surfaces leads to a more interesting phenomenon.
Answer:
it becomes a gas
Explanation:
the matter expands, turning into steam, a gas.
Yes. Copper, mercury, and tin are all used to fill in cavities.
Answer:
78 million in standard form is 78,000,000
