what melts sometimes to form boulders?
snow, ice, and rock precipitation thermal expansion building blocks of organisms rapid changes occur 70-75 degrees Fahrenheit permeable walls holding nutrients
A B C D E F G H
Glaciers are made of snow, ice and rock.
boulders are formed by snow, ice, and rock melting sometimes
what melts sometimes to form boulders? (A) snow, ice, and rock (B) precipitation (C) thermal expansion (D) building blocks of organisms (E) rapid changes occur (F) 70-75 degrees Fahrenheit (G) permeable walls (H) holding nutrients