People can adapt to living in a desert in many ways. One way people adapt is by living near an oasis so that they don’t have to worry about where to get water. An oasis is a pool of fresh water in the desert. Most oases have date palms growing around them. These date palms make it possible for people to live in the desert. People that live near an oasis eat the dates, build with the trunk and leaves, and burn the pits to use as fuel. People also grow cash crops at an oasis, like wheat or barley. They can trade these crops with nomads for things they don’t have, like meat, milk, and cheese. In the Sahel, there are not many oases, so people use a farming system called shifting agriculture to grow crops. Shifting agriculture is when a farmer plants crops in one place for a year. When the growing season is over, he harvests the crops. The next year, the farmer moves the crops to another field - he shifts the agriculture. This helps to keep the ground healthy, and not wear it out so fast by using one crop that takes minerals away from the soil. People also move their grazing herds this way so the grass won’t run out as fast. There are lots of ways to adapt to living in a desert region. Although living in the desert provides challenges, people who live there have figured out ways to adapt and to make their lives better.
The euro is the national currency in the EU.
Many forces work for supranational cooperation. One of the forces that works for supranational cooperation is the common market. The common market works for supranational cooperation by giving every country a common money system - the euro - and by lowering tariffs, or taxes, on trades. Another force that works for supranational cooperation is the EU government. The government brings members together to discuss issues that the entire EU shares, like environmental problems. It encourages EU citizens to think of themselves as members of Europe, which promotes a feeling of unity. These centripetal forces work for supranational cooperation.