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Virginia Earth Science SOL Module 3 Earth's history and surface processes overview quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. In a sequence of undisturbed sedimentary layers, which is the oldest?

  2. A fault cuts across several rock layers. What does this tell you?

  3. An isotope has a half-life of 5000 years. After 15000 years, what fraction of the parent remains?

  4. Which isotope is best for dating a piece of wood a few thousand years old?

  5. Which feature makes a fossil a good index fossil?

  6. Marine shell fossils are found in rock high in the mountains. What does this suggest?

  7. Water freezing and thawing in cracks slowly breaks a rock apart. This is

  8. A fast river slows as it enters a lake. What happens to its sediment?

  9. Which soil horizon is the humus-rich topsoil where most roots grow?

  10. On a topographic map, closely spaced contour lines indicate

  11. Where a contour line crosses a stream, it bends into a V. Which way does the V point?

  12. Two points 5 km apart are at elevations of 200 m and 450 m. What is the gradient?