Check About This Mac. From the Apple ( ) menu in the corner of your screen, choose About This Mac. The version of your operating system appears beneath âmacOSâ or âOS Xâ in the window that opens. If you need to know the build, click the version. This example shows macOS High Sierra version 10.13, build 17A365:
Biomass is fuel that is developed from organic materials, a renewable and sustainable source of energy used to create electricity or other forms of power. Some examples of materials that make up biomass fuels are: 1  scrap lumber; 2  forest debris;
Renewable Energy Source. Biomass energy is generated from organic material, plant or animal waste, which is burned to provide energy, e.g. heat & electricity.Since they come from living sources, these products potentially never run out which makes biomass a renewable energy source.educe Landfills. By burning biomass for energy, we can take waste that is harmful to the environment and turn it into something useful. Around six million tonnes of wood is wasted by being sent to landfill in the UK each year. This wood could be used in biomass boilers to heat homes and factories etc.