Qs

• name the processes 1-5 in fig 1

  1. evaporation
  2. condensation
  3. precipitation
  4. drainage
  5. transpiration

  
• which reaction produces water?

  aerobic respiration
• Leaves on a tree contain carbon compounds. In autumn the leaves fall to the ground.

  Microorganisms in the soil recycle carbon from the leaves so that the carbon is used for new plant growth.

  Explain how.

  • decay of leaves
  • respiration decomposers
  • respiration releases carbon dioxide
  • carbon dioxide is used in photosynthesis (for new plant growth)
• what is one benefit of fallen leaves for living plants

  nitrates are released into the soil
• name one biotic factor which may affect the number of buttercups growing on the field

  pathogens !!!

  mowing, competition, herbivores