What is the difference between physical and topographic maps?

Topographic maps are three-dimensional representations of landmass that use contour lines to depict elevation.Geologic maps are special purposes maps that show the geological properties of land- rock types, rock age, bedding planes, folds, and faults.Topographic maps are used for various purposes such as hiking or mining.

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.