WATER, AIR AND SOIL CONTAMINATION
Pollution is an (green) 1.___________________ concern for people throughout the world.
Water in many third world countries is (polluted) 2.____________________ with toxic chemicals, also known as toxins. The World Health Organization (WHO) estimates that 1.1 billion people have little or no access to (unpolluted) 3.____________________ water. In many of these regions the water that is used for drinking, cooking, and washing is the same water that is used for dumping sewage and hazardous (left-over) 4.____________________.
Air (contamination) 5.__________________ is a growing problem throughout the world. Indoor air pollution is one of the leading causes of lung cancer. Families in developing countries use open stoves for cooking and heating their homes. These homes do not have proper ventilation. The smoke, which is full of chemicals and carcinogens, gets trapped inside where families eat and sleep. Outdoor pollution also (leads to) 6._________________ disease and illness, especially in industrial cities such as Beijing, China, where cancer is the leading cause of death. China relies heavily on coal, which is considered the (filthiest) 7._________________ source of energy.
Soil pollution is also a major (worry) 8._____________________, both in industrial and developing countries. (Poisons) 9.__________________ such as metals and pesticides seep into the earth's soil and contaminate the food supply. Soil pollution causes major health risks to entire (environments) 10.__________________. Dumping of industrial and domestic waste products produces much of the world's soil pollution, though natural (tragedies) 11.__________________ can also add to the problem.