Coral Reefs

1. What are coral reefs actually made of?

• A. Hard rocks
• B. Tiny living animals
• C. Sea plants
• D. Sand and shells

2. What happens during 'coral bleaching'?

• A. The coral turns into a rock
• B. The coral grows much faster
• C. The coral kicks out the algae that feed it
• D. The coral changes its color to grow flowers

3. Why are coral reefs called the 'rainforests of the sea'?

• A. Because they are full of trees
• B. Because they are home to 25% of all marine life
• C. Because they only grow in the rainforest
• D. Because they need heavy rain to survive

4. Which of these is NOT a requirement for coral to grow?

• A. Warm water
• B. Shallow areas
• C. Clear sunlight
• D. Deep, dark water with no light

1. How do healthy coral reefs protect the land near the ocean?

• A. They act like walls that break big waves
• B. They absorb all the ocean's salt
• C. They push the tide further away from the shore
• D. They hold the beach sand together with roots

2. Why is overfishing bad for a coral reef?

• A. Because fish are needed to build the skeletons
• B. Because we need fish to keep the algae population in check
• C. Because coral needs fish to move around
• D. Because tourists only visit reefs to see fish

3. If you see a bleached coral, is it definitely dead?

• A. Yes, bleaching always kills the coral immediately
• B. No, it is stressed but might recover if the water cools down
• C. No, bleaching is how coral changes its coat to grow
• D. Yes, bleached coral is just a skeleton with no life

4. Which action shows a way humans can help keep coral reefs healthy?

• A. Touching the coral to see if it is hard
• B. Using anchors to park boats right on the reef
• C. Keeping the ocean clean from trash and chemicals
• D. Overfishing to keep the water clear for swimming