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Front

What does the law of superposition state?

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

Which layer is considered the youngest according to the law of superposition?

Back

The layer that is at the top of the sequence.

Front

How do you determine the relative ages of rock layers?

Back

By using the law of superposition and examining the order of the layers.

Front

What is the significance of the law of superposition in geology?

Back

It helps geologists determine the chronological order of rock layers and the history of the Earth's surface.

Front

What type of rock is formed from the compaction and cementation of sediments?

Back

Sedimentary rocks.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

How can sedimentary rocks provide information about past environments?

Back

They often contain fossils and sediment structures that reflect the conditions under which they were formed.

Front

What is the process of lithification?

Back

The process by which sediments are compacted and cemented to form sedimentary rocks.

Front

What is a fossil?

Back

A preserved remains or traces of ancient organisms found in sedimentary rocks.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the order of events without assigning a specific age, while absolute dating provides a numerical age.