Marine Pollution Quiz

What percentage of marine pollution comes from land-based activities?

• More than 50%

• More than 80%

• More than 70%

• More than 60%

Which of the following is not listed as a threat to oceans in the article?

• Global warming

• Overfishing

• Air pollution

• Space debris

What is one of the actions that conservationists advocate for to protect the biodiversity of the oceans?

• Reducing global warming

• Creating expansive marine reserves

• Banning all fishing activities

• Eliminating all coastal activities

According to the article, what is a consequence of global warming on the oceans?

• Decrease in sea levels

• Increase in sea levels

• No change in sea levels

• Fluctuating sea levels

What is a significant source of oil pollution in the oceans mentioned in the article?

• Natural oil seeps

• Cooking oil disposal

• Tanker spills

• Olive oil production

What percentage of fish stocks does the United Nations Food and Agriculture Organization estimate to be either fished to capacity or overfished?

• 31.4%

• 25%

• 40%

• 50%

Which of the following is NOT listed as a solution to protect ocean biodiversity?

• Establish marine parks

• Reduce destructive fishing practices

• Increase industrial waste dumping

• Minimize the use of military sonar

Why are the creatures of the 'twilight zone' considered vital to our oceans?

• They provide a source of food for other marine animals.

• They are responsible for the majority of oxygen production in the ocean.

• They are the primary predators in the ocean ecosystem.

• They contribute to the aesthetic beauty of the ocean.

What is aquaculture and what problem may it help to solve?

• Aquaculture is the study of water quality and may solve pollution issues.

• Aquaculture is the breeding of aquatic plants and may solve the problem of habitat destruction.

• Aquaculture is the cultivation of aquatic organisms and may be the solution to overfishing.

• Aquaculture is the exploration of underwater ecosystems and may solve the problem of species extinction.

What is the status of coral reefs in the Philippines according to the image?

• They are expanding and becoming more vibrant.

• They are some of the world's most vibrant but are in peril.

• They are unaffected by human activities.

• They are the least vibrant coral reefs in the world.