A rock sample contains only

  1. A student scratches a rock sample with his fingernail and leaves marks on the rock. What can be determined about this rock?A.The
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    2. Samir asked by Samir
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  2. URGENT help!3. A rock sample was dated using potassium-40, Neasyrenebt ubducated tgat 1/8 of the original parent isotope is left
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    2. Anon asked by Anon
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  3. 3. A geology student describes a rock sample she is studying in class. The rock sample is igneous rock, but the student wonders
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  4. 3. Sandra takes a class field trip to a geology museum. She sees an interesting sample of igneous rock. She wonders if the
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  5. 3. Sandra takes a class field trip to a geology museum. She sees an interesting sample of igneous rock. She wonders if the
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  6. A geologist concludes that a rock sample is an extrusive igneous rock. Based on this information, which statement about the rock
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  7. A scientist observed two rock samples. Sample A was found in the bottom of a dried–up lake and contained fossils. Sample B was
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    2. blah asked by blah
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  8. A scientist observed two rock samples. Sample A was found in the bottom of a dried-up lake and contained fossils. Sample B was
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    2. maya asked by maya
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  9. 1.To study a rock sample, geologists observe the rock's mineral, composition, color, and temperature.true false*** 2.finds a
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    2. ZOBO322 asked by ZOBO322
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  10. The three statements below are observations of the rock sample shown:• The rock was found in Northern Arizona which has
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