1The Amazon rainforest is one of the most diverse ecosystems on the planet, with thousands of plant and animal species.
2Is the ecosystem of the Great Barrier Reef being damaged by pollution and climate change?
3The introduction of invasive species can disrupt the balance of an ecosystem and cause long-term damage.
4To protect the ecosystem, we need to reduce our carbon footprint and use renewable energy sources.
5Scientists are studying the ecosystem of the Arctic tundra to understand how it is affected by global warming.