Answer:
A, B, C
Step-by-step explanation:
Freshwater wetlands are defined as the lands which have natural supply of water for the whole season due to geological or ecological factors such as tidal flows, connections with groundwater or flooding rivers.
There are three main types of freshwater wetlands swamp, marsh and bog.
A Swamp are able to support tall shrubs, tress, herbs and mosses to grow . These are covered with floodd water or gently flowing water and waterlogged soils prevent woody debris to decompose completely.
Marsh is found near lake, tidal water or rivers and remain flooded periodically. Marsh are the grassy areas covered by shallow water and help to overgrown with coarse grasses, rushes and sedges.
Bog is defined as an area where moss or mots decomposes slowly and form peat . They are characterized by acidic waters, a floor covered by a thick carpet of sphagnum moss and spongy peat deposits. they are generally found in northern climates which support precipitation of water.
Hence, the correct answer is A, B, C.