Material for rain-proof coats and tents owe their water proof properties to ________?

Related Mcqs:

Very High Frequency (VHF) have __________ wavelengths?

A. shorter B. shortest C. longer D. longest...

‘Black holes’ refers to_______________?

A. Holes occurring in heavenly bodies B. Bright spots on the sun C. Collapsing object of high density D. Collapsing object of low density...

Radon is___________?

A. germon radio B. radio active gas C. artificial fibre D. an explosive...

Which Organ is affected by trachoma?

A. Liver B. Lungs C. Eyes D. Brain...

The number of facial bones in a human body________?

A. 15 B. 14 C. 22 D. 26...