The Great Barrier Reef is an underwater structure located off the coast of Queensland, Australia that is made up of calcium carbonate and living coral. It is one of the largest structures made by living organisms and is home to a diverse array of sea life, including reef sharks, starfish, seahorses, dolphins and more. However, the reef faces threats from human activities like logging, crown-of-thorns starfish, and oil spills, which can damage the delicate coral ecosystem.

1. The Great Barrier Reef By Sam

2. What is a coral reef A coral reef is an underwater structure made of calcium carbonate and a place were coral grows.

3. How are coral reefs built Coral reefs are formed by hard coral that has died and new coral that is growing.

4. Where is the Great Barrier Reef? The GBR is found off the coast of Queensland. You can even see it from space.

5. What are three ways people use the GBR They can use it for science. Snorkelling. Looking at the wonderful sea animals.

6. What types of sea creatures live in the GBR There are lots of creatures such as reef sharks, star fish, sea horses, dolphins, sea snakes, sea turtles, heaps of fish, lobsters, crabs, octopi, lionfish and coral.

7. Two types of coral there. Fan coral and stag horn coral.

8. Logging You are cutting down good trees and it might erode into the ocean. People are not allowed to cut trees down near water

9. Crown of thorns starfish It will eat all the coral and destroy habitats of beautiful creatures The crown of thorns starfish has very few predators and these are some of them, the giant triton snail, the humphead maori wrasse, starry pufferfish and titan triggerfish

10. Oil spills Oil spills destroy anything and every thing such as fish and coral. They are being fined a lot of money.