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2991717
1.- Plate tectonics: Evidence of plate movement
Description
https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/plate-tectonics-evidence-of-plate-movement
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cultura científica 1º bach 1ºtrimestre
1.- plate tectonics
básica media
Quiz by
PEDRO ALVAREZ JIMENEZ
, updated more than 1 year ago
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Created by
PEDRO ALVAREZ JIMENEZ
about 9 years ago
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Resource summary
Question 1
Question
Which 2 continents could fit into each other?
Image:
eae17037-dddb-44d8-b723-08e29e33902b (image/png)
Answer
Antarctica and Asia
Africa and South America
Europe and Asia
Question 2
Question
Why do we use the alignment of magnetic rocks to know how old a plate is?
Image:
c65d4bd7-b70b-4141-8bac-641c7b921f18 (image/jpg)
Answer
The older rock that's aligned with our current magnetic field
The newer rock that's aligned with our ancient magnetic field
The newer rock that's aligned with our current magnetic field
Question 3
Question
If you look at magnetite which is close to the mid-ocean ridge. What do you expect about its alignment?
Image:
75fe83ea-4f1a-4be2-bfc3-b912e707e906 (image/jpg)
Answer
They're aligned in a way that you would expect with the current magnetic field
They're aligned in a way that you would not expect with the current magnetic field
They're aligned in a way that you would expect with the ancient magnetic field
Question 4
Question
And what about if magnetite is further?
Image:
297af351-2191-45e7-a233-08563df9e019 (image/jpg)
Answer
You have circles of other magnetic rock that is going in the opposite direction
You have stripes of other magmatic rock that is going in the same direction
You have stripes of other magnetic rock that is going in the opposite direction
Question 5
Question
Why this magnetic stripes pattern is an evidence of plate movement?
Image:
6850d121-9781-49f2-a9cd-6398a412acd8.gif (image/gif)
Answer
Wegener discovered them
The rift has had to move apart
Magnetic stripes change throughout time
Question 6
Question
In present times, What system do we use to measure the plate movement?,
Image:
6024425b-b639-4c30-9094-7f9f93706078.gif (image/gif)
Answer
Lageos
Computer monitoring
GPS satellites
Question 7
Question
Could you compare this speed to any biological process?
Image:
e076422c-6a3f-4a9e-8141-31fd2dba42b9 (image/jpg)
Answer
The speed at which hair grows
The speed at which fingernails grow
The speed at which fbones grow
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