Complete the passage by filling in each blank with one of word given

Here’s a completed version of the passage using the provided words:

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Over two thirds of the earth’s (1) **surface** is occupied by the oceans which supply human beings with food, (2) **oxygen** and other benefits. Despite their importance, they are getting polluted by human activities that may not be reversible unless urgent measures are taken. Firstly, humans are impacting ocean life by what they take out of the oceans. Over-fishing is one of the largest threats to (3) **marine** life. To meet the increasing demand of fish, commercial fishermen apply dynamite fishing methods instead of (4) **traditional** ways to catch as many fish as possible, from small to big ones. It is estimated that 90% of big fish are now gone from the oceans and about 30% of all fished species have been fished to (5) **extinction**. Secondly, humans are impacting ocean life by what they put into the oceans: Cans, bottles, plastic cups and other kinds of (6) **chemicals** waste are carelessly discarded into the oceans. Toxic (7) **household** and industrial waste without proper regulations are also pumped directly into the sea, either accidentally or thoughtlessly. In addition, oil spills contribute to the already polluted oceans. When fish feed on the waste, they are (8) **sickened** or killed by the poisons and humans who eat the poisoned fish will be sickened, too. The consequences of ocean pollution are too far-reaching, so what can be done to (9) **reduce** pollution? In response to those problems, some solutions have been suggested. To control overfishing, countries can set limits on the (10) **amount** of fish that fishermen can legally catch. Governments can also create sea areas where fishing is completely banned until the fish population increases. To protect the oceans from pollution, governments can keep strict controls on ocean dumping and require higher safety standards for oil tankers. The most effective solution to these two problems is to make people aware of the importance of the oceans. It’s not too late to save our oceans, but we should start at once.

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