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7 Cards in this Set
- Front
- Back
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The average height of the continents above sea level is greater than the average depth of the ocean? (t/f) |
False |
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Earth’s ocean first formed... |
When the surface became cool enough for liquid water to collect |
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How long ago might life on Earth have originated? |
3.85 billion years |
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The scientific theory for the origin of the universe is known as the Accretion Theory. (t/f) |
False |
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The world ocean covers about 97% of the Earth's surface. |
False |
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Earth’s heavy elements came from _________________. |
The deaths of ancient stars |
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Interlinking lines of evidence tell us that the age of Earth is approximately |
4.6 billion years old |
