When going camping, why does the grass turn yellow where the tent has been?

Question: When going camping, why does the grass turn yellow where the tent has been?
- Keywords:
  grass,
  light,
  tent
Asked by anilabanoona to Emma, Jimmy, Janet, Niall, Simon on 12 Mar 2013.
- Niall Crawford answered on 12 Mar 2013:
  
  It’s just the grass dying, because it can’t photosynthesise properly.
- Janet Daly answered on 12 Mar 2013:
  
  The green colour of grass comes from chlorophyll – chlorophyll needs sunlight to provide energy and make food for the plant. If the sun is blocked by your tent, then the grass will start to die and with no green chlorophyll it turns yellow.

Question: When going camping, why does the grass turn yellow where the tent has been?