Subject :NSO Class : Class 8
Ans 1: (Master Answer)
Class : Class 1
The correct answer is B.
Which two experiments can be used to show that air is needed for iron to rust?
(A) 1 and 3 (B) 1 and 4 (C) 2 and 3 (D) 2 and 4
(A) He should put out fire by a blanket.
(B) He should put out fire by petrol.
(C) He should put out fire using sand.
