Answer:
10
Explanation:
The atomic mass minus the atomic number = neutrons
Mainly because of erosion by the wind, which geographers call abrasion. When the wind blows in some hot deserts it will pick up millions of grains of sand. When the wind hits an outcrop of rock the sand it is carrying is blasted against it. Over time it would form to become that funky mushroom shape.
hope this helped! :))
I think the answer will be B