Lava is molten rock formed by geothermal energy and discharged by cracks in the terrestrial crust or in an explosion, usually at temperatures from 700 to 1,200 °C. The structures emerging from following solidification and cooling are also seldom defined as lava.
B) Meiosis-"a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores." taken from google
