Answer:
It should be B. Whether the ash or gas reaches the stratosphere
Explanation:
Most likely on the are the region is located, like if its closer to the equator or not
Explanation:

The <u>Khyber Pass</u> is in what is today Khyber Pakhtunkhwa province (formerly known as the North West Frontier Province) of Pakistan, near the city of Peshawar. It is a border region. What is the neighboring nation? (This map will help you.) The Khyber Pass is on Pakistan's border with Afghanistan.
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