Sound travels in air at an average speed of nearly________ ?

Related Mcqs:

Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

A. ionic substances B. metallic substances C. molecular solids D. covalent network solids...

Bauxite is an ore of_________?

A. copper B. zinc C. aluminium D. iron...

Adding Pozzolana in lime

A. increase shrinkage B. imparts hydraulicity C. produce humps in lime d. causes the lime to melt            ...

Parkinson is a disease of ?

A: Skin B: Lungs C: Circulatory system D: Brain (CNS) GK Forum@Fb.com...

White coal is ?

A: Uranium B: Hydro-electricity C: Ice D: Salt...