Amap that provides information about rainfall across an area of land is a map.

A map that provides information about rainfall across an area of land is a climate map. Climate maps indicate climate zones, areas of similar weather patterns, temperatures, precipitation, and wind using colors or isotherms. 
Isotherms are lines connecting places with the same average temperature.

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.