Questions

India's rank in the latest ICC One Day International Rankings is Second. England tops the list followed by India, South Africa, New Zealand, Pakistan, Australia in the list.

Whereas India's rank in the latest ICC Test International Rankings is First followed by South Africa and England in 2nd and 3rd places.

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases.

Earth's atmosphere is composed of many gases. Their percentages by volume is given by::

 
78% Nitrogen,

21% Oxygen,

0.9% Argon, and

0.03% Carbon dioxide 

And very small percentages of other elements.

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.

Rio de Janeiro has been named as the World Capital of Architecture for 2020.