Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of 1, where the magma is much hotter than surrounding magma. These 2and do not move with tectonic plates. They are responsible for the creation of 3island chains. HELP!!!

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.