With its definition.
igneous rock
rock that is formed when liquid rock solidifies and cools
hydrosphere
a well in which water flows to the surface due to high pressure underground
metamorphic rock
an underground layer of porous rock that contains water
sedimentary rock
rock that has been transformed by heat, pressure, or both
ecology
rock that is formed when layers of sediments accumulate, compress, and
cement together
artesian well
the study of interactions among living and nonliving things
aquifer

Igneous rocks- rocks formed by cooling and solidification of the magma

Hydrosphere- all the water also know as the blue part of the earth.

Metamorphic rock- rocks that arise from the transformation of another following a process called metamorphism

Sedimentary rock- rock formed by the accumulation of sediments

Ecology- part of the biology, studies the interaction between living beings and environment

Cement together- glue something to fasten it to another thing

Artesian well- aquifer with permeable rocks

Aquifer- geologic layer of porous filled with water
Hope it serves you and excuse my English!

They create genetic variations