Answer:
Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.
Explanation:
Answer: a tent
Explanation:
Because that is what you use to sleep in
Answer:
Reviewing other studies is what you should do.
It would be scattered throughout the wave because there would be different vibrations causing it to move in different places.
First option, Echo sounding
