ADMICRO

Choose the word or phrase (ạ, b, c, or d) that best fits the blank space in the following passage.

There are various types of pollution in the world. The most (51)__________ one is air pollution. It is caused mostly by factories that exclude smoke. This smoke pollutes the atmosphere (52) ________  dust and cinder which can cause various types of diseases like lung cancer, heart failure, and sinus infection (53)________ inhaled. Carbon monoxide from exhaust (54) _________ of vehicles is also very dangerous and can cause instant death when inhaled in (55)_________ amount. Water pollution is the pollution that occurs in rivers, seas, oceans, lakes, and other waterways. Water pollution is normally caused by the (56)____________ of waste like garbage and feces. The marine life in these waters will be affected. Some sea creatures perish while others (57)__________ the toxic extracts of the poisonous waste in their fat glands. When human beings eat these creatures, they will (58)______ fall ill or die. In Japan alone, every year, thousands of people suffer (59)____ strange diseases due to mercury poisoning. Others either lose their mental (60)______ or meet their deaths.

55__________

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