Coral Reefs and Environmental Impact

Alexandra, a 13-year-old student, discusses the importance of coral reefs and the threats they face, including overfishing, pollution, and climate change. She emphasizes the need for collective action to protect these vital ecosystems and suggests practical steps individuals can take to help mitigate these threats.

What role do coral reefs play in ocean ecosystems?

• They are a source of fresh water.

• They are a major source of oil.

• They provide habitat and food for many marine species.

• They are primarily used for human recreation.

How does overfishing threaten coral reefs?

• By increasing the number of predators.

• By reducing the number of fish that control algae growth.

• By causing water pollution.

• By destroying coral structures.

What is one consequence of mangrove loss near coral reefs?

• Increased fish population.

• Decreased water temperature.

• Increased soil erosion into the ocean.

• Decreased ocean salinity.

Why is the red lionfish a threat to Caribbean coral reefs?

• It is a source of food for native fish.

• It has no natural predators in the Caribbean.

• It is a natural predator of corals.

• It helps control algae growth.

What is coral bleaching?

• A method of cleaning corals.

• A type of coral disease.

• A process where corals turn white due to stress.

• A natural growth phase of corals.

How does climate change affect coral reefs?

• It reduces the number of fish species.

• It makes the water more acidic, stressing corals.

• It causes ocean temperatures to drop.

• It increases coral growth.

What is one action individuals can take to help protect coral reefs?

• Plant trees to absorb carbon dioxide.

• Increase energy consumption.

• Dump waste into the ocean.

• Use more plastic products.

Why is reducing plastic use important for coral reefs?

• Plastic increases water temperature.

• Plastic can pollute the ocean and harm marine life.

• Plastic provides food for fish.

• Plastic helps corals grow.

What is a benefit of planting trees in relation to climate change?

• Trees decrease ocean acidity.

• Trees increase ocean salinity.

• Trees absorb carbon dioxide, reducing greenhouse gases.

• Trees provide habitat for marine life.

What is the ultimate goal of conservation efforts for coral reefs?

• To make coral reefs a tourist attraction.

• To ensure the survival of coral reefs and marine biodiversity.

• To increase the number of invasive species.

• To reduce the number of fish species.