Underline the right option

cíu tuiiii
----- Nội dung dịch tự động từ ảnh -----
IV. Underline the right option.
The planet's water reserves are constantly polluted by waste from agriculture,
industries, and (1) sewage / sewers / sewing. Since water is always circulating through
the environment, it transports the (2) pollution/polluted / pollutants it contains from one
area to the next. A pesticide that is (3) sprayed / spread / crowded on a field, for example,
seeps into the groundwater, finds its way to a stream, and finally (4) ends up/gives up /
comes up in the ocean. These toxic substances harm (5) poisonous / aquatic/ dead plants
and animals, and also infect the food chain, causing certain plant and animal species to
become (6) extinct / extinction / extincted. They can also (7) effect/ defect /affect humans
who eat fish. Even though (8) dumping / collecting / clearing garbage in the ocean is strictly
forbidden, many countries release their (9) treated / untreated / treatment sewer waste
and dispose of their garbage into the water. In addition to this, more than 6 million tons of
oil are accidentally (10) spilled / littered / floated into the ocean every year.