The correct answer is D. All of the above.
Screenings are the materials that are separated from the main stream of material by screens. They are usually composed of small pieces of wood, metal, plastic, and other materials. Screenings can be disposed of in a number of ways, including burning, burial, or dumping. Burning is the most common method of disposal, but it can be harmful to the environment. Burial is a less harmful method, but it can take up a lot of space. Dumping is the least harmful method, but it can pollute the environment.
Composting is the process of turning organic materials into a soil amendment. It is a sustainable way to dispose of organic materials, and it can also improve soil quality. However, it is not a suitable method for disposing of screenings, as they are not organic materials.
Here is a more detailed explanation of each option:
- Option A: The materials separated by screens, is called screenings.
Screenings are the materials that are separated from the main stream of material by screens. They are usually composed of small pieces of wood, metal, plastic, and other materials.
- Option B: The screenings are disposed off either by burning or by burial or by dumping.
Screenings can be disposed of in a number of ways, including burning, burial, or dumping. Burning is the most common method of disposal, but it can be harmful to the environment. Burial is a less harmful method, but it can take up a lot of space. Dumping is the least harmful method, but it can pollute the environment.
- Option C: The process of burning the screenings, is known as compositing.
Composting is the process of turning organic materials into a soil amendment. It is a sustainable way to dispose of organic materials, and it can also improve soil quality. However, it is not a suitable method for disposing of screenings, as they are not organic materials.