Earth History and Evolution

Front

What is the Law of Superposition?

Back

In a sequence of undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

Front

What can ice cores tell us about Earth's past?

Back

Ice cores provide climate or atmospheric data, revealing information about historical climate conditions.

Front

What is a common cause of species extinction?

Back

Environmental changes, such as climate change, habitat loss, and natural disasters, often lead to species extinction.

Front

Which era is known for the dominance of mammals?

Back

The Cenozoic Era is characterized by the dominance of mammals.

Front

What evidence supports the theory of plate tectonics?

Back

Earthquakes provide evidence for plate tectonics by showing that tectonic plates are constantly moving.

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms, providing evidence of past life.

Front

What is the significance of sedimentary rocks in geology?

Back

Sedimentary rocks often contain fossils and provide insights into Earth's history and past environments.

Front

What is an unconformity in geology?

Back

An unconformity is a gap in the geological record, indicating periods of erosion or non-deposition.

Front

How do plate tectonics affect Earth's surface?

Back

Plate tectonics shape Earth's surface through processes like earthquakes, volcanic activity, and mountain building.

Front

What role do index fossils play in dating rock layers?

Back

Index fossils are used to identify and date the relative age of rock layers based on their presence.