Human Population

Can you imagine that? 7 billion of people live in this world. All types of human are complete in the Earth, the small one, the big one, the fat one, the thin one, the genius one and even more. Everyday peoples were born and everyday peoples die. Nowadays, the birth rate increases over time and the the death rate decreases. A high birth rate is caused by : early marriages and lack of knowledge of birth control. Sometimes, it becomes the opposite, the death rate increases and the birth rate decreases. A high death rate is caused by : disease, famine and natural disaster. People also move out of the country forever it is called emigration. The people who emigrate are called emigrants. There were also people who move into the country forever it is called immigration. The people who immigrate are called immigrants.

                        Here are some pictures about the human population:

 

7 billion - How your world will change?

Earth is full already, try another planet

 

So many people in the Earth