PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. It is not advisable to burn plastic and synthetic fabrics. Why?
 
Burning plastics and synthetic fabrics are a bad idea since it wastes resources and produces compounds that are difficult to store and dispose of safely.

2. A bucket made of plastic does not rust like a bucket made of iron. Why?
 
The bucket made of plastic does not react with the and humidity present in the air. While the iron reacts with the  to form rust.