A farmer examines the soil of a new plot of land he just purchased. He notices that the soil is very dark, almost black in color. The soil is filled with organic material. Based on his experience, the farmer knows this soil has a high fertility.

Which material gives the soil its high fertility?
bedrock
sand
silt
humus

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.

They don’t store and transmit heredity