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6. Which of the following is the youngest Pre-Cambrian rock type?

  • Torridchian Sandstone
  • Moine Schist
  • Lewisian Gneiss

7. What is the half life decay of carbon 14

  • 5730 years
  • 3700 years
  • 1345 years
  • 7530 years

8. What is the daughter isotope of 238U

  • 206Pb
  • 237U
  • 207Pb
  • 236Pb

9. What is the correct order of age (youngest to oldest) of these carboniferous rocks.

  • Coal measures, millstone grit, limestone series
  • Millstone grit, limestone series, coal measures
  • coal measures, limestone series, millstone grit

10. What is the correct order of the geological time periods?

  • cambrian, ordivician, silurian, devonian, carboniferous, permian, triassic, jurassic, cretacrous, eocene, oligocene, miocene, pleiocene, pleistocene, holocene
  • ordovician, holocene, cambrian, carboniferous, cretaceous, eocene, devonian, silurian, permian, jurassic, oligocene, triassic, pleiosene, miocene, pleistocene
  • Holocene, pleistocene, pleiocene, miocene, oligocene, eocene, cretaceous, jurassic, triassic, permian, carboniferous, devonian, silurian, ordovician, cambrian

11. which rock is a fine grained, extrusive igneous rock dominated by hornblende and augite?

  • Granite
  • Diorite
  • Basalt
  • Felsite

12. Which of the following are all layer silicate minerals?

  • quartz, feldspars, pryoxenes, amphiboles, olivine, garnet.
  • hematite, quartz, silica, potassium feldspar, talc, chert
  • Galena, quartz, gypsum, muscovite, halite, barytes, iron pyrites