Disavantages of asexual reproduction are

There are many advantages as well as disadvantages of asexual reproduction.

1) Only one trait of the parent plant is passed on so there is no diversity
2) Because the same genes are passed on, the same weakness is also passed on. Thus, the species may be prone to extinction
3) Furthermore, due to the fact that each plant will have the same characteristics, the plant won't be able to adapt some environments

Hope it 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.