Homeostasis is .
A
the process by which nutrients are absorbed in the villi of the small intestine

B
the tendency of the body to maintain inner balance despite changes in external conditions

C
the exchange of oxygen and carbon dioxide in the lungs

D
the filtering of blood in the kidneys that produces urine

B

the tendency of the body to maintain inner balance despite changes in external conditions

plant because they survive by water, sunlight, ex.

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.