Answer:
Sound waves move through a medium by means of particle-to-particle interaction. The source disturbs the immediately surrounding particles, causing them to vibrate about their fixed position at the same frequency as the source.
-Hope that helps<3
Answer:
Forests help control the water cycle by regulating precipitation, evaporation and flows. Layers of forest canopy, branches and roots can store and release water vapor, which controls rainfall. ... Deforestation weakens this process, leading to irregular rainfall patterns including drought and flooding.
Answer:
This is very vague. I am pretty sure that there are other instructions.
By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
