Questions

Mitochondria which is present in both plant and animal cells supplies energy to the cells and hence called as the powerhouse of the cell.

The acid and the nitrite form nitrous acid which then reacts with the amine.

The interval of time between Napoleon's escape from Elba and his abdication after the Battle of Waterloo

Lewis Hamilton of Mercedes won the Hungarian Grand Prix for the 6th time, at the Hungaroring circuit, in Hungary.

This is the 67th career victory for Lewis Hamilton.

The sound is what can you hear but not touch or see.

When heated any substance, the molecules move apart from each other. Alike in the air the molecules move apart from each other. We know that the warm air is lighter than the cool air. Since after heating air gets warmer, it floats up and the cool air comes down to occupy the warm air place.