Q4 of 22 Page 143

Workers in coal mines use battery operated torch lights instead of lanterns. Find the reason.

I. Lanterns can catch fire; thus, it is very dangerous. Ii.

II. Whereas, torch lights don’t catch as it has batteries in it. Therefore, it is safer.


More from this chapter

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4

In ‘A’ we get only ashes whereas in ‘B’ we get charcoal. Give reason.

 4

You might have read news items such as the one given below.


What are the reasons for the tragedy? List out the precautionary measures.

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If we identify the leakage of LPG in our kitchen, what measures should we take?

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LPG can be lit with a gas lighter whereas wood cannot be lit using a gas lighter, why?