The geosphere includes the rocks and minerals on Earth â from the molten rock and heavy metals in the deep interior of the planet to the sand on beaches and peaks of mountains. The geosphere also includes the abiotic (non-living) parts of soils, and the skeletons of animals that may become fossilized over geologic time.
Four types of vaccines are currently available: 1  Live virus vaccines use the weakened (attenuated) form of the virus. 2  Killed (inactivated) vaccines are made from a protein or other small pieces taken from a virus or bacteria.  Toxoid vaccines contain a toxin or chemical made by the bacteria or virus.
Cancer vaccines belong to a class of substances known as biological response modifiers. Biological response modifiers work by stimulating or restoring the immune systemâs ability to fight infections and disease. There are two broad types of cancer vaccines: 1  Preventive (or prophylactic) vaccines, which are intended to prevent cancer from developing in healthy people. 2  Treatment (or therapeutic) vaccines, which are intended to treat an existing cancer by strengthening the bodyâs natural immune response against the cancer (9).