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The Great Barrier Reef

15 ...... Stretching over 2,300 kilometres and spanning an area of approximately 344,400 square kilometres, the Great Barrier Reef is a complex and diverse ecosystem that shelters an array of plant and animal species, making it one of the most significant and biologically rich habitats on the planet.

The Great Barrier Reef is formed by the aggregation of coral polyps, tiny organisms that secrete an exoskeleton composed of calcium carbonate. 16 ...... The reef encompasses an array of habitats, including coral reefs, seagrass beds, and mangrove forests, providing shelter to numerous species of fish, turtles, dolphins, whales, and other aquatic creatures.

In addition, the Great Barrier Reef is a vital economic resource for Australia, generating income through tourism, fishing, and other industries. Unfortunately, the reef is facing numerous threats from human activities, such as climate change, pollution, and overfishing. Climate change is causing ocean temperatures to rise, resulting in coral bleaching and hindering the coral's ability to recover. Moreover, pollution from sources such as agricultural runoff and sewage discharge is affecting water quality and the health of the reef. 17 ......

To conserve the Great Barrier Reef, a suite of conservation measures have been implemented, including the creation of protected areas, regulation of fishing activities, and efforts to reduce pollution. 18 ...... For instance, the government has implemented regulations to limit the fishing of certain species, reduce nutrient runoff from agriculture, and limit tourism activities that can damage the reef.

19 ...... Visitors can play a role in protecting the reef by choosing to visit in a responsible and sustainable manner, such as avoiding activities that can harm the reef, supporting local conservation efforts, and reducing their carbon footprint.

The Great Barrier Reef is a unique and precious natural wonder that provides a vital source of income and livelihood for the people of Australia and is home to a vast array of plant and animal species. 20 ...... By working together and taking action, we can help to protect this remarkable ecosystem for future generations to come.

Six sentences have been removed from the text. Choose from the sentences (A – G) the one which fits each gap (15 – 20). There is one extra sentence that you do not need to use.

The Australian government is working with the scientific community to better understand the impacts of climate change and to develop strategies to mitigate these impacts.
Overfishing is also reducing the number of species that serve as a food source and habitat for other inhabitants of the reef.
Despite these efforts, the future of the Great Barrier Reef is uncertain, and much work remains to be done to ensure its long-term preservation and survival.
However, it is facing numerous threats that must be addressed if we are to ensure its future health and survival.
Another significant concern is the increasing pressure from tourism, which places strain on the reef’s delicate ecosystems.
Over the course of time, these exoskeletons accumulate and create the structure of the reef, which serves as a habitat for a vast variety of plant and animal species.
The Great Barrier Reef, located in the Coral Sea off the coast of Australia, is an unparalleled natural marvel that comprises the largest coral reef system in the world.
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