Recycling, as a solid waste disposal method, is generally unsuitable for organic matter because it's designed primarily for materials that can be reprocessed into new products, while organic waste naturally decomposes and can be managed through composting or other biological processes. 

Recycling is a highly suitable method for disposing of metal scraps, as it allows for the recovery and reuse of valuable materials, reducing the need for raw materials and minimizing environmental impact. 

Also, recycling is a suitable and beneficial method for the disposal of plastic waste, offering a way to reuse materials and reduce landfill waste and pollution. 

Recycling is a highly suitable and effective method for disposing of glass waste, as it allows for the reuse of the material and reduces the need for landfill space and raw materials.