What is an index fossil A.) is a list of all fossils found in a particular layer of rock.

B.) is a fossil that is found in many locations over a large area, and is from a species that did not exist fora long period of time.

C.) is a particular fossil of an organism that is related to all other organisms.

D.) None of the above.

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit