Humans wouldn't last long in space without significant technological assistance, does that mean we need to alter human biology to prepare it for future space travels?
Galileo Galilei often known as Galileo, was a physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. Check your general knowledge.
Numbers in many ways don't show us the situation in the world and this time you can see by yourself how much food does one family have for one week in 21 different countries around the world.