geologic time

Which type of rock are most fossils found?

• sedimentary rock

• metamorphic rock

• igneous rock

• fossils

An animal has sharp, pointy teeth, what can we infer about this animal?

• The animal lived in the water

• The animal lived near the beach.

• The animal is a carnivore.

• The animal only ate plants.

Fossils of species that existed for short periods and were widespread

• uniformitarianism
• cyanobacteria
• index fossils

Process by which organisms with traits that are suited to a the environment survive.

• natural selection
• principle of superposition
• uniformitarianism

 The oldest rocks are on the bottom and the rocks become progressively younger toward the top

• uniformitarianism
• natural selection
• principle of superposition
• index fossils

What is a large ancient landmass?

• Pangaea
• Cyanobacteria
• Africa
• Jumanji

A fossil may tell a geologist when, where, and how an organism lived.

• True
• False

The Geologic Time Scale is a record of what?

• old geologists
• sweet geology music
• the known history of rocks and fossils
• a list of every living thing ever

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

According to the law of superposition, which layer is the youngest?

• A
• B
• C