What is a surface area formula for a rectangular prism​

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?

Suppose that the half-life of an element is 1000 years. how many half-lives will it take before one-eighth of the original sample remains? 8 125 12.5 3

Many scientists like to study cosmic objects in the uv spectrum because objects giving off large amounts of uv light are typically and