7.11A Evidence of Earth's Change Quiz

The theory of ​ (a)   proposes that continents have not always been in their current locations and once may have been part of a​ (b)   ​ called Pangea. But the theory does not explain how the continents moved. Which terms best complete the sentence?

• continental drift
• supercontinent
• superposition
• ocean
• superocean

Based on the law of superposition, which fossil in the diagram can be used as evidence that Locations 1, 2, and 3 used to be connected?

• Gastropod

• Trilobite

• Coral

• Crinoid

Which of the following best describes fossil evidence that supports that Earth has changed over time?

• Fossils of an oceanic fish species are found on the same continents.

• Fossils of an extinct plant are found on two different continents.

• Fossils of different extinct birds are found on two different continents.

• The same species of plant is currently growing on two different continents.

What type of evidence might scientists look for to support the idea that North America and Africa were once connected?

• Fossil evidence

• Weather patterns

• Ocean currents

• Modern animal migration

What is one reason fossils are used as evidence for continental connection?

• Fossils can fly across oceans

• Fossils are found only in one place

• Fossils cannot move across oceans

• Fossils are always found in water

What is the significance of finding similar rock layers on different continents?

• It shows different ages of the continents

• It suggests the continents were once part of the same land mass

• It indicates different types of rocks

• It shows different weather patterns

This is a picture of glacier scars found in Africa.  What are these evidence for?

• Africa has always been near the equator
• Africa was once in an area of the Earth that had a very cold climate
• The continents have not moved
• sea floor spreading

Fossil records indicate that the continents were once connected. How do fossil records support this claim?

• We have been able to transport the same types of fossils from one continent to another.

• Fossils of the same organism have been found on continents that are now separated by oceans.

• Some continents contain fossils of many different types of organisms.

Explains how and why continents move.

• Plate tectonics

• earth

• lithosphere

• core

The edges of plates are called (a)  

• convection

• boundaries

• subduction

Answer explanation

The edges of tectonic plates are referred to as boundaries. These boundaries are crucial in understanding geological processes such as earthquakes and volcanic activity, distinguishing them from terms like convection and subduction.