Suppose a rock sample was taken from a fossil; the model has 1000 atoms of carbon-14 and 1000 atoms of nitrogen. If carbon-14 has a half-life of 5700, how old is the fossil

What is drought? what problem can cause?

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Which country is the smallest island of the greater antilles