PDF chapter test TRY NOW
Give brief answers to the following questions:
1. Name two soft metals which can be cut with a knife.
and metals are the two metals which are soft and can be cut with a knife.
2. Which non-metal is essential for our life and all living beings inhale it during breathing?
is a non-metal which is used by plants and animals (including human beings) for breathing. Thus, oxygen () is essential for maintaining our life.
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