Interesting facts about the world part 2

1.It is China’s air pollution that is visible from space and not the Great Wall of China.

2.The use of toilet paper in the history of human race dates back to 6th century AD in China.

3.The smartphone you carry has 18 times more bacteria than toilet handles.

4.Our mouths are houses for bacteria and germs.When people actually kiss each other they exchange approximately 10 million to 1 billion bacteria in no time.