4th gr. u2w3 Rescuing Our Reefs

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What is coral bleaching?

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Coral bleaching occurs when corals lose their vibrant colors and turn white due to stress, often caused by climate change, pollution, or changes in water temperature.

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What are coral reefs?

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Coral reefs are underwater structures made from calcium carbonate secreted by corals. They provide habitat for many marine species.

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Why are coral reefs important?

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Coral reefs support a diverse range of marine life, protect coastlines from erosion, and provide resources for fishing and tourism.

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What is climate change?

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Climate change refers to long-term changes in temperature and weather patterns, primarily caused by human activities like burning fossil fuels.

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What materials do scientists use to rebuild coral reefs?

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Scientists often use concrete blocks and other materials to create artificial reefs that help restore coral populations.

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What role do sea anemones play in coral reef ecosystems?

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Sea anemones provide shelter for certain fish, like clownfish, and are part of the diverse marine life found in coral reefs.

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What is the relationship between coral and algae?

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Coral and algae have a symbiotic relationship where algae provide food for corals through photosynthesis, and corals provide a safe environment for algae.

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What can harm coral reefs?

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Pollution, overfishing, climate change, and destructive fishing practices can harm coral reefs and lead to coral bleaching.

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the different species of plants, animals, and microorganisms.

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How do coral reefs protect coastlines?

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Coral reefs act as natural barriers that absorb wave energy, reducing the impact of storms and preventing coastal erosion.