Certain requirements must be met for recycling to be economically feasible and environmentally effective. Mineral reserves are resources known to be economically feasible for extraction. However, all were either unsuitable or not technically feasible. Waste container design is therefore essential to making such operations feasible. ETCS proved to be technically feasible and useful to recude headways. Capabilities are the alternative combinations of functionings that are feasible for a person to achieve. Repeated chemical treatments may be necessary, along with digging up the roots where feasible. Software packages exist to make this commercially feasible on a daily basis. Carbon taxes will make carbon capture and sequestration projects more financially feasible for the future. Immunohistochemistry has the advantages of being methodologically feasible and relatively inexpensive. There are arguments as to whether the operation itself was feasible. They are more or less ideally realised in practically feasible physical devices and materials. It made the printing of images for commercial usage more economical, feasible, and realistic. If technologically feasible and substitution is available, the usage of substitution is required. A catalyst is required to make the process operate at feasible temperatures.