Test and homework corrections

• Biosphere - All living organisms on Earth and their interactions with one another and with the environment.
• Explain how artificial aquifer recharge may help to increase water availability

  Surplus water is pumped into an aquifer. This will increase the amount of water in the aquifer. The water is filtered and is so ready to drink. The water is available in times of deficit
• Explain how grey water use may help to increase water availability

  To reduce the use of .ore purified water. For use in gardens or toilets
• describe one method that may have been used to collect the earthworms in this study without having to remove soil

  Vegetation and litter cleared;

  Irritant solution/named irritant/water/vibrations;

  Standard quantity added;

  Standard area;

  Standard time period;
• geological processes and mineral resources

  granite- igneous

  marble- metamorphic

  chalk- biological


  slate-metamorphic

  salt-evaporate

  coal-biological

  hydrothermal metal ores-igneous
• Describe the processes involved in the formation of hydrothermal metal ores that make present-day economic exploitation viable.

  mineral dissolved in hot water;

  movement away from batholith/along fissures;

  cooling;

  reduced solubility;

  crystallisation;

  order of deposition/separation of different minerals(by solubility);

  in veins/lodes/local concentration;