The earth and its atmosphere
- Created by: lizzyloo24
- Created on: 24-10-15 17:49
Other questions in this quiz
2. what happens at plate boundaries?
- at the plate boundaries there tends to be volcanoes and earthquakes occurring due to the movement of the plates
- there are huge ravines where the plates have moves away from each other
- there is no way of telling where the boundaries are
- various natural disasters
3. explain how the atmosphere has changed to contain oxygen
- oxygen was suddenly released from within the earth
- life evolved to form single-celled organisms which started to photosynthesise
- trees grew and produced oxygen
- natural disasters eventually created oxygen
4. what causes the motion of the plates?
- the plates move because of the rotation of the earth
- the plates move because of huge forces caused by convection currents
- the plates move because the ocean slowly pushes them
- the plates move because are slowly breaking up
5. what are deep sea vents? (hydrothermal vents)
- a hydrothermal vent is a fissure in planet's surface from which geothermally heated water issues. hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins and hotspots.
- a place where only some animals can live
- a deep gap in the sea floor
- a heated gap in the sea filled with water
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