Question

never wear synthetic clothes while burning crackers

Answer 1

We sould not wear synthetic clothes while burning crackers because is catches fire easily.

Answer 2

We  must never wear synthetic clothes while burning crackers

Explanation:

• We all know that synthetic clothes are composed of chemicals. These chemicals very easily get heated and when such materials come in contact of fire, they quickly get heated that results in the burning of the synthetic material.
• Therefore, at that time this material can be more dangerous as it melts up because of the heat and can also stick to our skin.  
• Synthetic fibers are thermoplastic implying they melt when they are heated. Fabrics made from such material tends to melt and shrink away. Hence, one must wear cotton clothes while lighting crackers