2.4 Sea floor spreading and subduction

2.4 Sea floor spreading and subduction

9th Grade

•

31 Qs

quiz-placeholder

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2.4 Sea floor spreading and subduction

2.4 Sea floor spreading and subduction

Assessment

Quiz

•

Social Studies

•

9th Grade

•

Hard

Created by

Kaitlin Swift

Used 2+ times

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31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The OLDEST seafloor is located? 

Closest to the mid-ocean ridge
Farthest from the mid-ocean ridge

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or False : Sea-floor Spreading adds new material to the ocean floor?

True
False

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when Subduction occurs?

Parts of the crust fall into the mantle
Parts of the crust fall into the core
Parts of the crust fall into space
None of these

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

True or false : Deep-Ocean Trenches are underwater canyons?

False
True

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did scientists use to map the oceans floor?

Echo-location
Sonar
Space Shuttles
Animals

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one piece of evidence of seafloor spreading? 

scientist found animals at the bottom of the sea
mountain rocks crashed into the ocean
scientist found pillow shaped rocks like pillows

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What process takes place at the trenches? 

divergent boundaries
subduction
new crust is formed
mountain ranges

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