The thin layer of rock on Earth's surface is the

• atmosphere

• hemisphere

• hydrosphere

• lithosphere

The diagram shows 2 locations where fossils of Mesosaurus have been found. Which statement best explains why these freshwater fossils are found today in some rock layers in both South America & Africa?

• Mesosaurus swam across the ocean between the continents

• The continents were once connected as a single landmass

• Global warming has been raising sea level in the Atlantic Ocean

• The remains of Megasaurus were carried across by predators.

Use this diagram from your reference table that shows a cross section of Earth's layers and their density differences. Which layer of the Earth is most dense?

• plastic mantle

• stiffer mantle

• outer core

• inner core

Convection currents, which may be the driving force for the movement of lithospheric plates, are mostly found in Earth's

• crust

• plastic mantle

• outer core

• inner core

In which diagram are the layers of the Earth correctly labeled?

• 1

• 2

• 3

• 4

The map below indicates the possible location of some of Earth's continents in the past. Which evidence best supports the idea that the landmasses on Earth were once in these positions?

• North America & India have matching rock layers

• Madagascar & India have similar shapes

• Matching rock layers can be found in Africa & South America

• Bedrock in Australia & Greenland have glacier scratches.

Base your answer to this question on the diagram that shows a model of Earth's interior. What information did scientists study in order to develop this model.

• recordings of earthquake waves (seismic waves)

• locations of recent volcanic activity

• core samples from seafloor drillings

• fossils found in rocks

Who is the person credited with developing the theory of continental drift?

• Harry Hess
• Galileo
• Alfred Wegener
• Newton

Tags

NGSS.MS-ESS2-3

Why did no one believe Wegener's ideas about continental drift? (Choose 2)

• He could not successfully explain HOW the continents moved

• He didn't have evidence that supported his ideas that the continents had once been connected

• They were biased against his ideas because he was German and a meteorologist

• He didn't use the right technology to gather data

Tags

NGSS.HS-ESS1-5

What is the name of the super continent that existed about 250 million years ago?

• Plate tectonics

• Convection

• Pangaea

• Gonwandaland