"an opening bracket"


Photography chemicals are used in the development and processing photographic film or paper to produce images. They are specifically formulated to react with the light-sensitive materials, typically include developers, fixers, stop baths, and other specialized agents.


Compost chemicals are used to accelerate the decomposition of organic matter into nutrient-rich compost for gardening or agricultural purposes. They composed of organic matter, such as plant residues, kitchen scraps, and manure, which decompose naturally with the help of microorganisms.