Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the scientifically accepted age of the earth? | 4.6 billion yrs old
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| What does the law of cross cutting relationships state? | Younger then the body of rock it cuts Through.
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| What was carbon 14 dating used for? | Organic material.
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| What is an index fossil? | can date a rock layer
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| Why are there few fossils founds in Precambrian rocks? | because they were old and deformed.
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| What sis the major cause of the Cretaceous extinction? | Asteroid strike.
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| What mark the boundary between the Pleistocene and the Holocene epochs? | The end of the last ice age.
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| What causes auroras? | Interaction with solar wind.
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| What causes a geomagnetic storm? | Coronal mass ejections
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| How does nuclear fusion create energy in the suns core? | Hydrogen nuclei and Helium
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| What is the scientifically accepted age of the universe? | 14 Billion years old
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| Explain the big bang theory? | All matter exploded and spread out
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| What is the cosmic background radiation | Remident of the big bang
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| What galaxy do we live in | Milky way
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Created by:
nickjohnson19
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