Choose the correct answer for each question.

1. Which answer describes P waves?

   1.   ?    Can travel through solids and liquids;
      are faster than S waves;
      are longidudinal waves.
   2.   ?    Can travel through solids and liquids;
      are slower than S waves;
      are longidudinal waves.
   3.   ?    Can travel through solids and liquids;
      are faster than S waves;
      are transverse waves.
   4.   ?    Cannot travel through liquids;
      are slower than S waves;
      are transverse waves.
   5.   ?    Cannot travel through liquids;
      are faster than S waves;
      are longidudinal waves.

2. Which answer describes S waves?

   1.   ?    Can travel through solids and liquids;
      are faster than P waves;
      are longidudinal waves.
   2.   ?    Can travel through solids and liquids;
      are slower than P waves;
      are longidudinal waves.
   3.   ?    Can travel through solids and liquids;
      are faster than P waves;
      are transverse waves.
   4.   ?    Cannot travel through liquids;
      are slower than P waves;
      are transverse waves.
   5.   ?    Cannot travel through liquids;
      are faster than P waves;
      are longidudinal waves.

3. Which answer correctly list the different layers of the Earth in order from surface inwards?

   1.   ?    crust, mantle, outer core, inner core.
   2.   ?    outer mantle, inner mantle, crust, core.
   3.   ?    inner core, outer core, mantle, crust .
   4.   ?    outer core, crust, mantle, inner core.
   5.   ?    crust, outer mantle, inner mantle, core.

4. The earth's outermost layer is ...

   1.   ?    made up of tectonic plates. When two plates try to move past each other but due to friction, they cannot move and pressure builds up. An earthquake occurs when the plates "slip", releasing the energy in a devastating way.
   2.   ?    made up of tectonic plates. These plates are in constant motion. When two plates try to move past each other but due to friction, they cannot move and pressure builds up. An earthquake occurs when the plates "slip", releasing the energy in a devastating way.
   3.   ?    plates in constant motion. When two plates try to move past each other but due to friction, they cannot move and pressure builds up. An earthquake occurs when the plates "slip", releasing the energy in a devastating way.
   4.   ?    made up of tectonic plates. These plates are in constant motion. When two plates try to move past each other they cannot move. An earthquake occurs when the plates "slip", releasing the energy in a devastating way.

5. New plate material is formed ...

   1.   ?    at mid-ocean ridges where sea floor speading occurs.
   2.   ?    at subduction zones where the oceanic lithosphere descends below the continental lithosphere, forming off-shore trenches and parellel volcanic mountain chains.
   3.   ?    at subduction zones.

6. Plates collide ...

   1.   ?    at mid-ocean ridges where sea floor speading occurs.
   2.   ?    at subduction zones where the oceanic lithosphere descends below the continental lithosphere, forming off-shore trenches and parellel volcanic mountain chains.
   3.   ?    at subduction zones.

7. Increased pressure and temperature can cause metamorphism ...

   1.   ?    at mid-ocean ridges where sea floor speading occurs.
   2.   ?    at subduction zones where the at oceanic lithosphere descends below the continental lithosphere, forming off-shore trenches and parellel volcanic mountain chains.
   3.   ?    at subduction zones.

8. Magma is formed by ...

   1.   ?    descending lithosphere entering hot mantle and partially melting.
   2.   ?    recrystallisation.
   3.   ?    crystallising deep below the surface to form coarse grained rocks (e.g. granite).

9. Metamorphism produces new rocks by ...

   1.   ?    descending lithosphere entering hot mantle and partially melting.
   2.   ?    recrystallisation.
   3.   ?    rising magma crystallising deep below the surface to form coarse grained rocks (e.g. granite).

10. Rising magma ...

    1.   ?    usually produces coal and diamonds due to the increased pressure and temperature.
    2.   ?    can crystallise deep below the surface to form fine grained rocks (e.g. basalt lava) or rise to the surface in volcanoes to form coarse grained rocks (e.g.granite).
    3.   ?    can crystallise deep below the surface to form coarse grained rocks (e.g. granite) or rise to the surface in volcanoes to form fine grained rocks (e.g.basalt lava).
    4.   ?    is responsible for creating oil fields just below the surface of the Earth.