Term
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Definition
| ABOUT 4.55 Billion Years Old. |
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Term
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Definition
| Most Say About 3 - 4 Million Years. |
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Term
| What was the first life like? |
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Definition
| The first life was most likely small, simple organisms living underneath the water. |
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Term
| What effect did the photosynthesizers have on Earth? |
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Definition
The photosynthesizers released oxygen into the air, creating the Ozone Layer, and making it possible for any/other forms of life to live on land. |
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Term
| What is Radiometric Dating? |
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Definition
| A technique used to date materials, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates. |
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Term
How would you do a "half-life" problem? |
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Definition
At = AoC^t/p
At = final amount
Ao = Oringinal Amount
C= half life
t= time
p = period |
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Term
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Definition
| Pangea is believed to be the super-continent that esixted before the plates under the surface of the earth shifted and tore them apart forming the continents we have today. |
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Term
| What are Plate Tectonics? |
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Definition
| A theory that explains the global distribution of geological phenomena such as seismicity, volcanism, continental drift, and mountain building in terms of the formation, destruction, movement, and interaction of the earth's lithospheric plates. |
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