Unlike mechanical weathering, what does chemical weathering change about a rock? A: It's composition
B: It's shape
C: It's size
D: It's height

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

Astate of matter all that has define volume and can flow is a(n)

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o