The statement which is given above is true.
<u>Explanation:</u>
Acid deposition or acid rain is any form of precipitation that falls from the atmosphere in the form of rain. Acid rain falls on the ground in dry or wet forms. Acid rain falls in the form of sulphuric acid or nitric acid.
This type of rain results in the deposition of acids on the ground or surface. Acid rain and acid deposition is harmful for the living beings. It damages the buildings, cars as well as crops. Acid rains can be prevented by not allowing the burning of fossil fuels.
I would probably go with A because judging from the map it looks like most of it is mountains. <span />
Xi'an, China
34x60n.miles=2,040 nautical miles
109x60n.miles=6,540 nautical miles
2,040+6,540=8,580 nautical miles. (this one is closer)
Los Angeles, USA:
34x60n.miles=2,040 nautical miles
118x60n.miles=7,080 nautical miles
2,040+7,080=9,120 nautical miles. (this one is further)
The blast of the volcano, the wind, and how light the ash is all affect how far it will travel.