First, fresh comes from The water tower. It comes through pipes. It goes into your houses. The people use water for drinking and washing. Some water goes to the cold tops. . Some goes into water heaters. When people use the clean water it becomes dirty. It is the waste water or sewage.أنا على اختبار إنكليزي والمدرس عطنا هالقطعة وهذا جزء منها إذا أحد ترجمها راح أنزل الجزء الثاني وبعدين الأسئلة