Question

Preeti was down with an attack of bronchitis. The atmosphere was full of smoke and noise as diwali was nearing when her parents explained to the ill effects of burning crackers to neighbourhood kids. They agreed not to burn crackers anymore. (๐ข) It is observed that when a cracker is burnt its light reaches us first and then we hear its sound. Why? (๐ข๐ข) Write any three ill-effects that Preeti’ parents might have explained to kids. (๐ข๐ข๐ข) Do you support kid’s decision of not burning crackers, which qualities do you identify in those kids.

  • Why do we fall ill CBSE Class 9
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Answer

(i) When cracker is burnt its light reaches us first and then we hear its sound as light travel faster than sound.

(ii) Ill effects of burning crackers:

(a) Causes pollution in the atmosphere.

(b) Its causes respiratory disorder

(c) Its creates noise pollution.

(iii) Yes, we support the kids decision as she positively shown her concern towards to “say no to crackers” and environment.

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