Composting can involve the decay of organic matter that comes from which of the following?

Composting is a natural process that involves the breakdown of organic matter by microorganisms, resulting in a nutrient-rich product known as compost. This process can effectively utilize a variety of organic materials, making it a sustainable practice for waste management and soil improvement.

Sewage sludge is a byproduct of wastewater treatment that can contain organic material. When treated properly, it can be added to compost to enrich the final product, contributing valuable nutrients back into the soil.

Agricultural waste, such as crop residues, fruit and vegetable scraps, and animal manure, is another significant source of organic material for composting. Utilizing agricultural waste not only helps reduce waste but also recycles nutrients back into agricultural systems.

Organic industrial waste, which may include food processing residues, paper products, and other organic materials from industrial processes, can also be composted. This waste is often rich in carbon and nitrogen, essential components for successful composting.

Given that all the listed materials—sewage sludge, agricultural waste, and organic industrial waste—can be effectively composted, the correct answer encompasses all these options, highlighting the versatility and applicability of composting in managing different types of organic waste.