ScienceClass 7CBSE
Q
Why should we not throw (a) used tea leaves into the sink? (b) cooking oil and fats down the drain?
A
Soln:
a) Used tea leaves may block the sink.
b) Cooking oil and fats gets harden and block the sink.
Soln:
a) Used tea leaves may block the sink.
b) Cooking oil and fats gets harden and block the sink.