What is nearly total number of states or countries in the world ? Mention their differences and similarities why there is need to live and work together among states or countries?

Question

(i) Total numbers: The world of today consists of nearly 200 states, which are also known as countries.(ii) Similarities...

Accepted Answer

(i) Total numbers: The world of today consists of nearly 200 states, which are also known as countries.(ii) Similarities...