Made of a lipid bilayer (blank) is responsible for allowing the movement of the substances and the water inside and outside of the cell. a) cell wall b) plasma membrane c) outer membrane d) basal body

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.