Answer for brainiest :)

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Explanation:

Well, animal cells use simple sugars, like glucose. The simple sugars are the only ones small enough to pass through cell walls.  We use ATP to access the energy in the sugars. Cells can either use a aerobic system (using oxygen) or an anaerobic system to metabolize sugars. Humans generally use the aerobic system although in some cases our cells are forced to use the anaerobic system.

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.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )