What type of items are prohibited from being thrown into the water according to the garbage placard?

The correct choice identifies items that are prohibited from being thrown into the water according to the garbage placard. This includes plastic, rags, glass, food, metal, and paper, all of which can cause significant harm to the aquatic environment.

Plastic can take hundreds of years to decompose and poses a serious threat to marine life, often leading to ingestion or entanglement. Rags and other fabrics may not break down in the water, contributing to pollution. Glass can create sharp hazards for both wildlife and humans. Food waste can introduce non-native species and disrupt local ecosystems, while metal can rust and leach into the water, harming aquatic organisms. Paper debris can also contribute to water pollution and decompose poorly in the water.

Understanding the ramifications of littering these specific materials helps reinforce the importance of maintaining clean waterways and protecting marine ecosystems.