What is not true about the process pictured? a. molecules move against the concentration gradient. b. energy is not provided by the cell membrane. c. energy is provided by the molecules from the environment. d. molecules are moving from the inside of the cell to the outside.

the answer is b.) hydrogen bonds between bases.

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.