Physics
Materials for rain-proof coats and tents owe their water-proof properties to

specific gravity
elasticity
surface tension
viscosity

ANSWER DOWNLOAD EXAMIANS APP

Physics
Which of the following is not a property of heavy water ?

Freezing point of heavy water is higher than that of ordinary water
Density of heavy water is higher than that of ordinary water
It produces corrosion
Boiling point of heavy water is lower than that or ordinary water

ANSWER DOWNLOAD EXAMIANS APP