Bài 7. Khoanh tròn phương án đúng. Consequences of water pollution Water pollution is a matter of concern nowadays because of its negative effects on the environment and human. The first problem is that water pollution kills (1) ________ organism. Dead fish, crabs, birds and sea gulls, dolphins, and many other animals have been killed by (2) ____________ in their habitat. Moreover, pollution (3) _______ the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals. Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all high levels. Eventually, humans are (4) ___________ by this process as well. People can get (5) ______ such as hepatitis by eating seafood that has been (6) ______________. In many poor nations, there is always outbreak of cholera and diseases as a (7) ______ of poor drinking water treatment from contaminated water. (8) ________ people don’t prevent pollution, not only the environment but also their health will be put at risk. 1. A. aquatic B. atmosphere C. underground D. soil 2. A. pollutes B. Pollution C. polluted D. pollutants 3. A. changes B. disrupts C. pollutes D. clears 4. A. affect B. affected C. affecting D. effect 5. A. illness B. sickness C. diseases D. healthiness 6. A. cleaned B. poisoned C. processes D. prepared 7. A. outcome B. effect C. way D. result 8. A. If B. Unless C. When D. In case