Read the excerpt from "Protecting the Great Barrier Reef." Pollution is another significant environmental threat. The vibrant ecosystems and habitats of the Great Barrier Reef are delicate and highly vulnerable to worsening water conditions caused by pollution. Strong scientific evidence suggests that increasing amounts of pesticides and fertilizers are entering the Great Barrier Reef. The majority of land that borders the reef is used for farming sugar cane. Pesticides and fertilizers used by cane farmers end up in the waters around the reef due to rainfall runoff and soil erosion. These harmful substances also make it into the groundwater through field drainage systems. Toxic pesticides pose a serious risk to marine wildlife in freshwater areas of the reef.

Select the evidence from the excerpt that best supports the idea that farmers should use natural pesticides and fertilizers.

Pollution is another significant environmental threat.
The majority of land that borders the reef is used for farming sugar cane.
The vibrant ecosystems and habitats of the Great Barrier Reef are delicate.
Toxic pesticides pose a serious risk to marine wildlife in freshwa