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The evidence that scientists currently have suggests that life on earth __________.

a. began in the water
b. first evolved around 3,500 million years ago
c. began as single-celled organisms
d. a and b
e. all of the above

User MyLibary
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D because everything has a connection to earth
User Rifat Bin Reza
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They think that life between in the water about 3,500 million years ago. They also believe that the first life form was a single cell organism. They can use radiometric dating in order to calculate time based on radioactive decay in rocks.
User Narendra Vadnere
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