Our Environment (6th class)

Our Environment 
Note--You are advised to write these notes in your note book and draw beautiful diadrams or paste pictures of all plants, animals  nonliving objects etc. wherever necessary . 
You must write index as factors of environment in detail.
Our environment is made up of two type of factors
1 Biotic
2Abiotic
Biotic factors are those factors which are living eg plants ,animals and micro-organisms.
Abiotic factors are those factors which are non living eg wire, wood ,aluminum cans, chalk duster etc.
More about biotic  factors
Producers
Those organisms which make their own food because they have a special green matter called chlorophyll in their leaves.So the green plants are also called autotrophs .The process by which green plants make their own food is called photosynthesis.

The equation of photosynthesis is
 
                                           sunlight
Carbon dioxide + water       -----------------            glucose +oxygen
                                              chlorophyll
Consumers
Those organisms which can not make their food and depend  upon others for food are called consumers e.g. animals. They don't have green matter (chlorophyll) in them.
Primary consumers or herbivores --
Those animals which eat plants directly are called primary consumers e.g. cows ,buffaloes, goatetc.
secondary consumers or carnivores
Those animals  which eat herbivores e.g. lion ,cheetah ,fox
Decomposers -
They are micro-organisms which live dead and decaying organic matter .They decompose the organic matter and help in recycling the dead organic matter e.g. fungi and bacteria.