igneous rock: a rock formed when melted rock materials cools and hardens.
sedimentary rock: a rock made of bits of matter joined together.
fossil: any remanins or printing of living things of the past.
methamorphic rock: a rock formed under heat and pressurefrom another kind of rock.
humus: decayed plant or animal material in soil.
pollution: adding any harmfull substances to earth's land, water, or air.
rock cycle: rocks changing from one form into another in a never-ending series of process.
This is the first time I've come across this blog.
ResponderEliminarThe spelling and grammar are so poor as to render the effort worthless.
Please take it down.