The negative (17)__________ of marine pollution are two-fold. Marine creatures and plants are affected by the harmful substances in the dumped materials. The wastes that are (18)__________ into the oceans tend to have toxic substances, which soak in all the oceanic oxygen. This leads to a marked reduction of oxygen available to mammals and other fishes causing them to die in their natural habitat. Every year more than one million seabirds are being killed by ocean pollution. In addition, the increased (19)__________ of plastic on the ocean surface has resulted in more serious problems. Most of the plastic debris (broken pieces of something) that reaches the ocean remains floating for years (20)__________ it does not decompose quickly, and it leads to the (21)__________ of oxygen level in the water, severely affecting the survival of marine species. Similarly, the presence of harmful wastes in the waters make impacts on the food habits and health of human being because it (22)__________ the food chain and fails the reproductive system of fish and other aquatic beings.
- A. reasons B. effects C. purposes D. ways
- A. reused B. recycled C. dumped D. exhausted
- A. removal B. absence C. arrival D. presence
- A. so that B. if C. so D. as
- A. dropping B. dripping C. shutting D. increasing
- A. disappoints B. spoils C. decreases D. prevents
