Class M planets have a thick Oxygen/Nitrogen atmosphere. Specific gravity within 0.7 to 1.3 Earth normal. Random, but mostly manageable weather current patterns, temperatures ranging from 0 to 40 degrees Celsius. Fertile soil, excellent for Organic production. Mineral deposits, very good for Equipment production. Chemical elements good for Fuel Ore. Class M planets are excellent for humanoid colonization and promote an excellent population growth curve as well as a verg good population harmony quotient. They have an above average “habitability band”. Drawbacks include overpopulation problems, political unrest and human—induced destruction of the BioSphere.