Qatar's stated proved oil reserves are 15.207 billion barrels
The total water supply of the world is 326 million cubic miles (mi3)(a cubic mile is an imaginary cube measuring one mile on each side), or 1,360 million cubic kilometers (km3). A cubic mile of water equals more than one trillion gallons.
About 3,100 mi3 (12,900 km3) of water, mostly in the form of water vapor, is in the atmosphere at any one time. If it all fell as precipitation at once, the Earth would be covered with only about 1 inch of water.
Qatar's stated proved oil reserves are 15.207 billion barrels
The total water supply of the world is 326 million cubic miles (mi3)(a cubic mile is an imaginary cube measuring one mile on each side), or 1,360 million cubic kilometers (km3). A cubic mile of water equals more than one trillion gallons.
About 3,100 mi3 (12,900 km3) of water, mostly in the form of water vapor, is in the atmosphere at any one time. If it all fell as precipitation at once, the Earth would be covered with only about 1 inch of water.