Question

6.The vacuum cleaner can suck dust and paper pieces because :
(A) the air inside the collecting bag is sucked out by an electric motor
(B) there is a magnet like substance inside it which attracts the dust and paper
(C) the electric current flowing in the device makes dust particles stick to it
(D) none of these

Answer 1

This is the air that sucks up, or vacuums, the dirt and dust. The low pressure air caused by the air going into the vacuum cleaner draws up small objects which then get trapped in bags, canisters or filters. Vacuum cleaners use low air pressure to help us pick up small particles of dirt and dust