The Tarahumara people are a Native American group that lives in the desert ecosystem of Mexico. They eat foods like corn tortillas, rice, beans, and cactus. They live in wooden or rock houses. The hot or cold weather can negatively impact the Tarahumara people by causing dehydration or death. The rural population farms and raises animals, while the urban population is larger and more polluted due to vehicles and factories. Pollution from these sources can harm the environment through acid rain and smog. Small actions like not littering and controlling factory emissions can help reduce pollution.