U8L2 Fossils and Geologic Time OG NOTES with questions

Multiple Choice

What are the two laws described that explain how the Earth changes?

• Law of Uniformitarianism and Law of Catastrophism

• Law of Uniformitarianism and Law of Gradualism

• Law of Erosion and Law of Sedimentation

• Law of Volcanic Activity and Law of Gradualism

Multiple Choice

What are the examples of original remains mentioned in the image?

• Insects trapped in amber

• Bone

• Tooth

• Claw

Multiple Choice

Why are index fossils useful for correlating rock layers?

• They are found in all rock layers.

• They existed for a short geological period but had a wide geographic distribution.

• They are the largest fossils.

• They are made of minerals that can be radiometrically dated.

Multiple Choice

What is an index fossil?

• A fossil that is abundant, widespread and short-lived.

• Marine organisms

• A fossil that is found in specific places and in many layers of the Earth

• A fossil that is really, really old

Multiple Select

Ramiro is studying the Mesozoic era. Which two living things would he find in this era?

• flowers

• amphibians

• dinosaurs

• coral reef

• humans

Multiple Choice

What was the significance of the Great Oxygenation Event (GOE) in Earth's history?

• It marked the first appearance of multicellular life

• It led to the formation of the ozone layer

• It caused the extinction of dinosaurs

• It resulted in the first land plants

Multiple Choice

What are the major events in Earth's Geologic History during the Paleozoic Era?

• Oldest fossils found

• Dinosaurs

• Mammals become dominant

• Pangea formed

Multiple Choice

What are the main causes of mass extinction as defined in the text?

• Asteroid impacts

• Volcanic eruptions

• Climate change

• Rapid environmental shifts

Multiple Choice

What were the likely causes of the Ordovician mass extinction?

• Rapid global cooling

• Asteroid impact(s)

• Increase in Methane and CO2

• Frequent heat waves

Multiple Choice

What do the Paleozoic marine fossils in the mountains of Virginia indicate about the region's past environment?

• A warm tropical flat ocean environment

• A cold desert environment

• A mountainous region

• A volcanic landscape

Multiple Choice

What are the key geologic changes that have shaped Virginia's geology?

• Formation of Ancient Appalachian Mountains

• Volcanism and Magma Intrusion

• Marine Transgressions and Regressions

• Erosion and Weathering

Open Ended

Can we bring extinct species back? If so, should we?

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