Which statement describes the relative age of a fossil that has formed inside a layer of rock? (1 point)

• The fossil is older than the layer of rock it was formed in.
• The fossil is younger than the layer of rock right above it.
• The fossil is older than the layer of rock right below it.
• The fossil is younger than the layer of rock it was formed in.

Use this sentence: A fault cuts across several layers of rock. Which conclusion can be made?
• The fault is younger than the layers of rock based on the law of crosscutting. • The fault is older than the layers of rock based on the law of crosscutting. • The fault is older than the layers of rock based on the law of inclusion. O The fault is younger than the layers of rock based on the law of inclusion.

What do the law of superposition and the law of inclusion have in common? (1 point)
• Both laws are about matching fossils in different areas. • Both laws are about the ages of intruding rocks. •• Both laws describe the relative ages of rocks. • Both laws give the exact ages of rocks.

Which is correct about the effectiveness of carbon dating? (1 point) • It only works for organisms that died less than about 60,000 years ago. • It only works for organisms that died less than about 6,000 years ago. • It only works for rocks that formed more than about 6,000 years ago. • It only works for rocks that formed more than about 60,000 years ago.

Which statement is correct about carbon dating and index fossils? (1 point) • They are both used to determine the absolute ages of rocks and fossils. • They are both used to determine the relative ages of rocks and fossils. • Carbon dating is used for absolute dating, but index fossils are not.
O Index fossils are used for absolute dating, but carbon dating is not.

Which statement explains why ammonites are a good example of an index fossil? (1 point) O Ammonites existed in a small geographic area. • Ammonites existed long before the dinosaurs. • Ammonites existed only in the oceans. • Ammonites existed for a relatively limited period of time.

What is the theory that describes the movement of landmasses on Earth's surface? (1 point) O divergence • continental drift O subduction • plate tectonics

How does the fern Glossopteris provide evidence for the movement of the continents? (1 point)
• It was found on many continents.
• It lived at the same time as Lystrosaurus.
• It existed in the Permian period.
• It is the oldest plant on Earth.

Which is a result of Earth's magnetic poles reversing over time? (1 point)
• magma rising to the ocean floor at mid-ocean ridges
O volcanoes occurring at tectonic plate boundaries
• high amounts of iron found in ocean rocks
distinct bands in rocks that contain magnetic particles

How are earthquakes at continental plate boundaries different from earthquakes at mid-ocean ridges?
• They are longer in duration.
• They begin closer to Earth's surface.
• They are shorter in duration.
• They begin deeper in Earth's crust.

Which describes ocean rocks that are found near mid-ocean ridges? (1 point)
• They are older and form through the cooling of magma.
• They are younger and form through the cementation of sediments.
• They are older and form through the cementation of sediments.
• They are younger and form through the cooling of magma.

1 answer

The correct answers are:

1. The fossil is older than the layer of rock it was formed in.
2. The fault is younger than the layers of rock based on the law of crosscutting.
3. Both laws describe the relative ages of rocks.
4. It only works for organisms that died less than about 60,000 years ago.
5. They are both used to determine the relative ages of rocks and fossils.
6. Ammonites existed for a relatively limited period of time.
7. Continental drift.
8. It was found on many continents.
9. Distinct bands in rocks that contain magnetic particles.
10. They begin closer to Earth's surface.
11. They are younger and form through the cooling of magma.