sciense homework connetcting with fire class?

This homework has two questions :

 

 

CHICK THE HOMEWORK FIRST AND SEE IF U COULD DO IT PLEASE.

 

 

 

THIS HOMEWORK NEEDS TO BE DONE IN LESS THAN 3 HOURS , SO PLEASE IF U CANNOT MAKE IT ON TIME ,PLEASE NO WAISTE FOR THE TIME PLEASE . THANK U SO MUCH

 

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