GARBAGE IN,GARBAGE OUT CLASS VI. GARBAGE WASTE EXPELLD FROM HOUSES, SHOPS,SCHOOLS,HOTELS, OFFICES,...
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Transcript of GARBAGE IN,GARBAGE OUT CLASS VI. GARBAGE WASTE EXPELLD FROM HOUSES, SHOPS,SCHOOLS,HOTELS, OFFICES,...
DEALING WITH GARBAGE
• 1. SORT OUT THE WASTE THAT CAN NOT BE DECOMPOSED.
• 2. FROM THESE, SEPARATE THE USEFUL MATERIALS.
4.DISPOSE THE USELESS NON-DECOMPOSING MATERIALS IN LANDFILLS
• LAND FILLS ARE AREA WHERE THE GARBAGE COLLECTED FROM A CITY IS BURIED .
5. DECOMPOSING WASTE CAN BE PUT IN COMPOST PITS
• CONVERTING PLANT AND ANIMAL WASTE INTO MANURE USING EARTHWORMS IS CALLED VERMICOMPOSTING.
VERMICOMPOSTING
• METHOD OF PREPARING COMPOST USING EARTH WORMS.
• 1.DIG A PIT OR TAKE A WOODEN BOX SPREAD A NET OR MESH AT THE BOTTOM. SPREAD SAND.
2.SPREAD VEGETABLEWASTE.LEAVES etc.
3.SPRINKLEWATER. DO NOT PRESS THE WASTE
• 4.PUT EARTH WORMS AND COVER THEM WITH A GUNNYBAG.
• 5.AFTER 3-4 WEEKS, EARTH WORMS TURN THE WASTE TO MANURE.
PRECAUTION
• DONOT PUT SALT,VINEGAR, OIL MEAT, MILK etc.
• AVIOD TOO MUCH HOT/COLD SURROUNDINGS.
• MIXTURE MUST BE LOOSE FOR PROPER AERATION
ADVANTAGES OF PLASTICS
• Used to make many useful materials in day today life.
• Lightweight• Strong• Colour ful• Cheap• Easy to transport
DISADVANTAGES OF PLASTIC• Plastic waste can block drains• Plastic enter into the digestive system of
animals can kill them.• Some plastics are toxic.• Plastic waste the destroy the scenic beauty of
a place.• Plastic waste do not decompose .So it is
difficult to dispose plastic waste.
ANSWER THESE QUESTIONS• 1.What is garbage?• 2.What kinds of wastes are disposed in
landfills?• 3.What is the colour code for dustbins to
collect decomposing and nondecomposing wastes?
• 4.What is meant by vermicomposting?• 5.Write any three advantages and three
disadvantages of plastics.• 6.Suggest effective methods to manage our
wastes.
MCQ
• 1.Which kind of garbage is not converted into compost by red worms?
• a]vegetable peel b]fruit waste c]plastic• 2.The best way of handling paper waste• a]burn it b]recycle it d] composting• 3. Earthworms have this part to grind the
food• a] mouth b]teeth c] gizzard
*
*
ANSWER
*
MATCH THE FOLLOWING
• 1.EARTHWORM• 2.PLASTIC• 3.RECYCLING
PAPER• 4.BURNING
WASTE• 5. LADNFILL
• 1.DO NOT DECOMPOSE
• 2.VERMICOMPOST• 3.TO BURY WASTE• 4.SAVE TREES• 5.CAUSE AIR
POLLUTION
FILL IN THE BLANKS• 1.THE METHOD OF MAKING COMPOST USING
RED WORMS IS CALLED------------------------------.
• 2.GREEN DUST BIN IS USED FOR STORING---------------------------------------------WASTES.
• 3.BURNING OF WASTES CAUSE--------------------OF AIR.
• 4.THE BEST WAY TO DEAL WITH PLASTIC WASTE IS --------------------------.
• 5.ONE ADVANTAGE OF PLASTIC IS --------------.
VERMICOMPOSTING
DECOMPOSINGPOLLUTION
RECYCLING. LIGHT
WEIGHT