This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
You can show a working elevator and bridge based on the principle of Hydraulics.For this,you need to use syringes and plastic tubes.You can make the elevator and bridge with the help of cardboard.
1 5 1