The Garbage Contains:
- Plastics
- Metal containers
- Groundnut shells

Explanation:
Garbage refers to the waste material that is no longer useful or needed. It includes various types of waste generated by human activities. In this case, the garbage contains plastics, metal containers, and groundnut shells. Let's discuss each of these in detail.

1. Plastics:
Plastics are a type of synthetic material made from polymers. They are widely used in our daily lives for various purposes such as packaging, household items, and electronics. However, plastics are non-biodegradable, which means they do not break down easily in the environment. As a result, they contribute to pollution and pose a threat to wildlife. Common plastic items found in garbage include bottles, bags, food containers, and wrappers.

2. Metal Containers:
Metal containers are usually made of materials such as aluminum or steel. They are commonly used for packaging food and beverages. Metal containers are recyclable, which means they can be melted down and reused to make new products. However, if they end up in the garbage instead of being properly recycled, they can contribute to landfill waste and take up valuable space.

3. Groundnut Shells:
Groundnut shells are the outer covering of peanuts. They are a type of organic waste that can be found in garbage. Groundnut shells are biodegradable, meaning they can naturally decompose over time. They can also be used for various purposes, such as animal feed or as a source of energy.

Conclusion:
In conclusion, the garbage mentioned in the question contains plastics, metal containers, and groundnut shells. It is important to properly manage and dispose of garbage to minimize its negative impact on the environment and promote sustainability. Recycling, composting, and reducing the use of non-biodegradable materials are some of the strategies that can be implemented to address the issue of garbage.