Carl is on an expedition to the bottom of the ocean. as the submersible sets down on the ocean floor, it is resting on what layer of the earth? asthenosphere lithosphere lower mantle core

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.