1st way is chopping trees for wood. 2nd would be pollution by fossil fuel.
<span>Small jagged pieces of rocks, minerals, and volcanic glass the size of sand and silt (less than 2 millimeters (1/12 inch) in diameter) erupted by a volcano are called volcanic ash. Very small ash particles can be less than 0.001 millimeters (1/25,000th of an inch) across.</span>
Answer:
Canyon
Explanation:
5. A Canyon is a mostly dry riverbed that usually has steep box-like sides.
