Malaria is caused by a parasite called Plasmodium, which is  transmitted via the bites of infected mosquitoes. In the human  body, the parasites multiply in the liver, and t â¦ hen infect red  blood cells. Usually, people get malaria by being bitten by an  infective female Anopheles mosquito.   *Ninety percent of malaria-related deaths occur in Africa. Malaria is commonly associated with poverty, but is also a cause of poverty.   *Malaria is one of the most common infectious diseases and an enormous public health problem.
metamorphic rock. (petrology). A rock formed from preexisting solid rocks by mineralogical, structural, and chemical changes, in response to extreme changes in temperature, pressure, and shearing stress.
A particle of mineral or other rock that gives a rock texture. IGNEOUS ROCK. A type of rock that forms from the cooling of molten rock at or below the surface. SEDIMENTARY ROCK. A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together. METAMORPHIC ROCK. A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.