Earth Science sem 1 wk 3

Many early mapmakers thought Earth’s continents had moved based on

• plate boundary locations.

• fossil evidence.

• climatic data.

• matching coastlines.

Tags

NGSS.MS-ESS2-3

ntinental drift was not widely accepted when it was first proposed because

• continental landmasses were too big to move slowly over Earth’s surface.

• magnetic and sonar data proved that Wegener’s hypothesis was incorrect.

• Wegener couldn’t explain why or how the continents moved.

• mantle convection currents weren’t in motion at that time.

Tags

NGSS.HS-ESS1-5

The magnetic pattern of ocean-floor rocks on one side of an ocean ridge is

• younger than on the other side.

• much different from the magnetic pattern found in rocks on land.

• at right angles to the ocean ridge.

• a mirror image of that of the other side.

Tags

NGSS.MS-ESS2-3

Isochron maps of the seafloor indicate that ocean crust is

• oldest near ocean ridges.

• youngest at deep-sea trenches.

• youngest near ocean ridges.

• thinnest in subduction zones.

Tags

NGSS.MS-ESS2-3

Continental-continental plate collisions produce

• very tall mountain ranges.

• deep-sea trenches.

• rift valleys.

• island arcs.

Tags

NGSS.MS-ESS2-2

The driving forces of tectonic plates are related to convection currents in Earth’s

• outer core

• inner core

• mantle

• crust

Tags

NGSS.MS-ESS2-1

Crust is neither destroyed nor formed along which of the following boundaries?

• convergent

• divergent

• magnetic

• transform

Tags

NGSS.MS-ESS2-3

Subduction results in the formation of

• deep sea trench

• a magnetic reversal.

• new continental crust.

• a rift valley

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

1. __ are plutons that cause overlying rocks to bow upward.

• Dikes

• Laccoliths

• Composite

• sea floor

Tags

NGSS.HS-ESS2-1

1. __ volcanoes are made of basaltic lava.

• shield

• composite

• Hawaiian

• small