Eric wants to see if a Shark vacuum works better than his current Oreck. He makes sure both of the vacuum canisters are empty, and then vacuums half of the living room with the Oreck and the other half with the Shark. After vacuuming the measures the amount of dust in each canister. A. Independent Variable= B. Dependent Variable=
C. Control=

the match duh

explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.