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6 Written Questions

6 Multiple Choice Questions

  1. huge #s of living things dying off at one time; usually a tragic event causes it
  2. geology that happened in past, happens now, and will in future too; constant change in Earth; James Hutton idea
  3. time for half # of radioactive atoms to change (decay) into different type of atoms
  4. age of Earth based on age of oldest rocks found
  5. magma squeezed up from below; younger than layers it cuts through
  6. gone forever; examples - dinosaurs, trilobites

6 True/False Questions

  1. invertebratesanimals without backbone; earliest animals; examples - insects, jellyfish, worms

          

  2. petrified fossilevidence left by living thing long ago; examples - tracks, tunnels, turds, nests, etc.

          

  3. sedimentarygone forever; examples - dinosaurs, trilobites

          

  4. unconformityevidence left by living thing long ago; examples - tracks, tunnels, turds, nests, etc.

          

  5. law of superpositionhuge #s of living things dying off at one time; usually a tragic event causes it

          

  6. trilobitetime for half # of radioactive atoms to change (decay) into different type of atoms

          

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