Avolcanic eruption took place about two billion years ago and released lava onto earth's surface. the lava cooled to form basalt. which of the following is least likely to have happened to the basalt over this time?

some of the basalt melted and became molten rock.

some of the basalt changed into metamorphic rock.

most of the basalt stayed the same for two billion years.

most of the basalt broke down and became sediment

The third one most of the basalt stayed the same

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.