Read this section to learn about the basic problem of scarcity and the study of economics. Be sure to click through to read each of the pages in this section. As you read, reflect on the things that society needs and the resources that are needed for production like natural resources, money, labor, etc. Every society needs to take into account the problem of scarcity, and that decisions are needed to choose from producing one thing over another. An example is choosing between having a natural wild environment by not developing a piece of land, or developing that land for housing.
Now that we have gotten an overview on what economics studies, let's quickly discuss why you are right to study it. Economics is not primarily a collection of facts to be memorized, though there are plenty of important concepts to be learned. Instead, economics is better thought of as a collection of questions to be answered or puzzles to be worked out. Most important, economics provides the tools to work out those puzzles. If you have yet to be been bitten by the economics "bug," there are other reasons why you should study economics.
The study of economics does not dictate the answers, but it can illuminate the different choices.