Water on the kitchen floor at home is considered a safety hazard.

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

This is the substance(s) formed in a chemical reaction.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects