Earth History Test

Front

What are fossils?

Back

Fossils are the preserved remains or traces of organisms that lived in the past, typically found in sedimentary rocks.

Front

In which type of rock are fossils most commonly found?

Back

Fossils are most commonly found in sedimentary rocks.

Front

What does the law of superposition state?

Back

The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

Front

What can be inferred if many fossils of large amphibians are found in a currently barren desert?

Back

It can be inferred that the climate of the area was once much wetter than it is now.

Front

What provides the best evidence that Earth's oceans have changed over time?

Back

Marine fossils found on land masses provide the best evidence that the distribution of Earth's oceans has changed over time.

Front

What is sedimentary rock?

Back

Sedimentary rock is a type of rock formed by the accumulation and compaction of mineral and organic particles, often containing fossils.

Front

What is the significance of marine fossils found on land?

Back

Marine fossils found on land indicate that the area was once covered by water, suggesting changes in Earth's geography over time.

Front

What are the main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.

Front

What is the difference between igneous and sedimentary rocks?

Back

Igneous rocks are formed from cooled magma or lava, while sedimentary rocks are formed from the accumulation of sediments.

Front

What is a trilobite?

Back

A trilobite is an extinct marine arthropod that lived during the Paleozoic era, known for its distinctive three-lobed body.