The height of a sign wave is called it's a. atmosphere
b. altitude
c. amplitude
d. attitude

What are two reasons for why a species might disappear from the fossil record?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen