Use element and pure element in a in the same sentence

An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means.

An element has many different quantities of electrons, protons, and neutrons but a pure element can have few or more as the other but all around, they have the same amount of each. Does this make sense? I hope I helped. ^-^

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.