Sources of food

Sources of food

1. Such AS

   • Crops
     • Require
       • Sunlight , Water , Air
         • For Growth
           • Can Be Regulated By Plant Hormones
             • Also Used In Ripening Of Fruits & Weed KIllers
     • Can Be Protected By
       • Chemical Control
         • Which Comprises Of
           • Herbicide
             • Weed KIllers
           • Pesticide
             • Which can Cause Pollutions
       • Biological Control
         • Which Include of The Use Of Natural Predators(Food Chains)
     • Soils Requires
       • Fertilisers
       • Appropriate pH
         • Can Be Measured using
           • Litmus Paper
           • Universal Indicator
           • pH meter

2. Needs TO Be Increased Due TO

   • Space ;Limitation
   • Increase In World Population

3. Can be increased by

   • Intensive Production Methods
     • Intensive farming practices include growing high-yield crops, using fertilisers and pesticides and keeping animals indoors. Food production is increased but there are unwelcome side effects.
     • Intensive farming practices include growing high-yield crops, using fertilisers and pesticides and keeping animals indoors. Food production is increased but there are unwelcome side effects.
   • Improving Plant And Animal Varities

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