What is the importance of economics?

So, personally i think that an economics is one of the most important science in the world,because everyday we have to make a choice among many things.
Nowadays an economics becomes more and more important especially in poor countries, because people in these countries need to econom many things, for example in countries like Angola, Senegal, Ghana etc, people have to econom their water and food because it's really hard to find any sources of water in these countries.Also many people in rich and modern countries like USA, Germany, Great Britain, France, etc, people are trying to keep their resources like oil,gas,electricity, because they are really important for our modern life, everyday we use petrol which makes from oil and uses in cars and other machines, gas and electricity we use everyday and everywhere, but we have to econom them because there are no much oil and gas in the world and it can be finish off,so nowadays people make special programme which can help to econom and to keep resources on our planet. Also in a crises time there is an inflation in many parts of out world, prices and taxes become higher and it's a big problem because people who don't have much money they can't pay for their taxes.It's very important to have a good economic system like in many countries of Europe, if people know how to use an economic system in a right direction they will know how to sort out any problem in the world.