Задание

Read the text about coral reefs and complete it with the parts of the sentences below.

Write one letter in each gap.

You may have heard that coral reefs are being threatened . We need to conserve them for as long as possible. For instance, the Fight for the Reef campaign aims to raise awareness about how proposed increases in shipping traffic and the development of large ports would negatively impact the largest coral reef system in the world.

Coral reefs are reasons. They protect coastlines from the damaging effects of wave action and tropical storms. They also provide habitats and shelter for many marine endangered species. Coral reefs are the source of nitrogen and other . They help in carbon and nitrogen fixing and with nutrient recycling. If we harm coral reefs, it will affect all the flora and fauna of those places.

The study of coral reefs is important for providing a clear, scientifically testable record of climatic events over the past million years or so. This includes records of recent that are recorded by the changes in coral growth patterns. Coral reefs ecosystem on Earth. Diversity is important for a variety of reasons. Biodiversity ensures that some life will continue to survive, even after major catastrophic events that wipe out many species.

A. important for many different

B. essential nutrients for marine food chains

C. by human activity.

D. may be the most diverse

E. major storms and human impacts