Memory Unit 4 Part 1Version en ligne Match the spelling word with the correct defintion par Jenna Sivetts the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms microbes interaction a grassy plain in tropical and subtropical regions, with few trees savanna viable a microorganism, especially a bacterium causing disease or fermentation. relating to or determined by the sun made or produced by human beings rather than occurring naturally, especially as a copy of something natural biosphere a biological community of interacting organisms and their physical environment hydroelectric ecosystem a stretch of land, especially with regard to its physical features relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator (of a plant, animal, or cell) capable of surviving or living successfully, especially under particular environmental conditions terrain solar a particular way in which matter, fields, and atomic and subatomic particles affect one another, e.g. through gravitation or electromagnetism artificial