Another name for brown algae is
a) diatom
b) euglena
c) sea weed
d) wee beastie

who knows

explanation:

well, you see. the answer to your question is quite simple. the thing that is big, powerful, and over 9,000 is your mom.

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.