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2991717
1.- Plate tectonics: Evidence of plate movement
Descrição
https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/plate-tectonics-evidence-of-plate-movement
Sem etiquetas
cultura científica 1º bach 1ºtrimestre
1.- plate tectonics
básica media
Criado por
PEDRO ALVAREZ JIMENEZ
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Criado por
PEDRO ALVAREZ JIMENEZ
mais de 11 anos atrás
276
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0
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Resumo de Recurso
Questão 1
Questão
Which 2 continents could fit into each other?
Image:
eae17037-dddb-44d8-b723-08e29e33902b (image/png)
Responda
Antarctica and Asia
Africa and South America
Europe and Asia
Questão 2
Questão
Why do we use the alignment of magnetic rocks to know how old a plate is?
Image:
c65d4bd7-b70b-4141-8bac-641c7b921f18 (image/jpg)
Responda
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
Questão 3
Questão
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)
Responda
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
Questão 4
Questão
And what about if magnetite is further?
Image:
297af351-2191-45e7-a233-08563df9e019 (image/jpg)
Responda
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
Questão 5
Questão
Why this magnetic stripes pattern is an evidence of plate movement?
Image:
6850d121-9781-49f2-a9cd-6398a412acd8.gif (image/gif)
Responda
Wegener discovered them
The rift has had to move apart
Magnetic stripes change throughout time
Questão 6
Questão
In present times, What system do we use to measure the plate movement?,
Image:
6024425b-b639-4c30-9094-7f9f93706078.gif (image/gif)
Responda
Lageos
Computer monitoring
GPS satellites
Questão 7
Questão
Could you compare this speed to any biological process?
Image:
e076422c-6a3f-4a9e-8141-31fd2dba42b9 (image/jpg)
Responda
The speed at which hair grows
The speed at which fingernails grow
The speed at which fbones grow
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