Earth Science Quiz

What is pressed together to form rock with a fossil inside?

Which is an example of Earth's conditions slowly changing?

• meteors striking

• volcanoes erupting

• continents moving

• a mass extinction

How did cyanobacteria change life on earth?

What gas layer protects Earth from the sun's radiation?

In what time period did fish develop and trilobites rule the ocean?

What time period is called the Age of Mammals?

What is one thing that sets hominids apart from other primates?

Which group of hominids lived at the same time as Homo sapiens?

________ is a type of mammal characterized by opposable thumbs and binocular (three dimensional) vision.

________ is the trace or remains of an organism preserved by geological process.