Question
Classify green, blue and red dustbins.
✓
Answer
| Green dustbin | Blue dustbin | Red dustbin |
| Leaves, rotten fruits and vegetables, left-over food, peels of fruits and vegetables. | Paper, plastic bags, juice bottles, broken plastic things etc. | Surgical needles, cotton dressings, knives, sanitary napkins, medicine wraper etc. |
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A wooden boat floats
Merrily in water.
An iron ship also floats,
but does not sink even
if it is heavy.
A needle is light,
like a leaf,
sinks straight in water.
A soap dish floats but does not
sink even with the soap.
Think why this happens,
what secret is hidden in this?
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