The world is trying to control chemical and nuclear weapons. CTBT stands for Comprehensive Test Ban Treaty is a treaty which is to ban all the nuclear explosions in all surroundings. NPT stands for Non-...

Grey refers to an intermediate color between black and white. In U.S.A, grey is spelled as gray. Thus, there is no difference between the two.

YouTube is a video-sharing website that enables a user to watch videos online. Vimeo is also a video-sharing website and it is owned by IAC.

YouTube is a video-sharing website owned by Google. Whereas, Facebook is a social network website. Youtube is a website that is all about videos and Facebook is a website that is designed for connecting people.

Finance is the study or management of money affair. On the other hand, economics is the study of production and distribution of money and goods.