Source of food

Source of food

1. Soil Conditions

   • Fertiliser
     • Add nutrients to the soil
       • Plant grow faster
     • Negative impact
       • Negative impact on aquatic life
       • Algae bloom
   • Ph
     • test
       • Neutral
         • 7
       • acid
         • less than 7
       • alkaline
         • more than 7

2. Proctection of crop

   • SLASH AND BURN
     • loss of natural habitat
     • Cause haze and air pollution
     • Cheap and easy method
   • Biological control
     • Inbalance of eco system
     • Environmentally friendly

3. Carry out photosynsthesis to make food

   • Raw material
     • Water
     • Carbon Dioxide
   • Condition
     • Sunlight
     • Chlorophyll
   • End product
     • Sugar
       • excess converted to starch

4. Chemical control

   • Pesticides and herbicides
     • Soil contamination
     • water contamination
     • Loss of food chains

Imagens e arquivos do mapa