EDS
1. Boat float over water.... Ans none of these
2. Aeroplace takesoff.....Ans trust
3. Volta cell produce electricity...Ans chemical action
4. Car battery turn on. .. positive to negatice
5. Without friction......ans always move
6.hydro electric dam produce ans from kinetic energy to electrical
7.train 100 kmph and sun light 300000 kmph....ans 300000 kmph
8. Ans was gamma rays. Forget the question
9. Sound waves traver slower then electromagnetic