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;
A sugar source is a plant organ that is a net producer of sugar either by photosynthesis or by the breakdown of starch. Leaves are the primary sugar sources in most plants. sugar sink is a net consumer or storer of sugar. Growing roots, buds, stems, and fruits are all sugar sinks. A storage organ, such as a tuber or a bulb bay be a source or sink, depending on the season.