Body composition is best described as
a. the amount of lean muscle in a body
b. the total amount of muscle in a body
c. the total mass of fat in the abdomen
d. the ratio of fat to other tissue in a body

Body Composition can best be described as the ratio of fat to other leaner materials (ie muscles, bones, ect) in the body. Fatty tissues can include fat deposits as well as the certain layers of skin. Lean tissues burn calories in the body. Fat tissues are not metabolically active.

They formed the oceans.  as they melted water was formed and the water made the oceans

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution