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Assessment
What is the primary benefit of coral reefs in ocean ecosystems?
They provide habitat and shelter for many marine organisms.
They produce oil and gas.
They create tidal waves.
They filter freshwater.
Which of the following human activities poses the greatest threat to marine life?
Overfishing.
Swimming in the ocean.
Surfing.
Scuba diving.
What is a major consequence of plastic pollution in the ocean?
It leads to the entanglement and ingestion of marine animals.
It increases the sunlight penetration to the ocean floor.
It contributes to the growth of coral reefs.
It cleans up oil spills.
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