South and Central America posses much of the worlds tropical rainforests

a. the production of carbon dioxide through the process of photosynthesis

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.

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )