How old is the oldest fossil?
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Assume a geologist found a rock sample that, upon analysis, contained 50% radioactive isotope (parent) and 50% stable daughter product. How many half lives would have passed
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Posted by mkls 3 days ago
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Jillian draws a line segment 2 1/4 inches long. Then she makes the line segment 1 1/2 inches longer. How long is the line segment now?
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Why is the Sand Red in Grand Turk
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how far is the equator from the decidous forest in pitsburg
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Wat is the tree parts of the biosphere
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What American & Kenyan Cities have the same names?
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The clearing of whay has harsh effect on animal population?
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How can you desribe a relationship between the flow of electricity and mangnetic fields?
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co detectors, Are there any other reasons a CO alarm would sound? Two seprate alarms have gone off, at the same time, twice within 24 hours. The fire dept, said that they could not even get a reading ...
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Posted by frank 25 days ago
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my son was given a smithsonian kit on building an engine and he wanted to use that for his science project, but we don't know how to make that into a science project. any ideas he is in eigth grade ...
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how does the refining process of mica affect people?
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how is mica used today? what is it good for?
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how does the Cilia help a paramecium survive?
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how to build base-isolated home for 9th grade project
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Posted by scott 1 month ago
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how many acres is 337 X 782
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Posted by Lynn 2 months ago
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How long does it take the moon to complete an entire phase change?thanks
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Posted by nadia 2 months ago
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Found a granite boulder with cut slots (2 1/2" x1/2" )why would they do that?
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are the special characteristics that identify a substance
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Posted by Aimee 2 months ago
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where can i find mica
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Posted by Imo 2 months ago
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