Finals- Ch.10 Science T/F

True

A meteorite striking Earth is an example of catastrophism.

False

Absolute age examines tthe position of rocks in a sequence.

False

According to the principle of superposition, the youngest rock layers are farthest to the surface.

False

After one half life, the percent of parent atoms to daughter atoms in sample is 25% parent and 75% daughter.

False

To be a useful index fossil, a species must have been rare.

True

Carbon films are formed when a thin film of carbon is left, forming a outline of the original organism.

False

Fossil ferns indicate that Earth was once very cold and wet.

True

Uniformitarianism states that processes occurring on Earth's surface today are similar to those that occurred in Earth's past.

True

Index fossils are the remains of species that existed on Earth for relatively short periods of time.

False

Organisms are more likely to become fossils if they have many soft parts.