Final answer:
Wetlands are environments with saturated soil and emergent vegetation. Marshes, swamps, and bogs are types of wetlands where bogs have stagnant water with low nutrients.
Step-by-step explanation:
Wetlands are environments in which the soil is either permanently or periodically saturated with water. They are different from lakes and ponds because they exhibit a near continuous cover of emergent vegetation.
There are several types of wetlands including marshes, swamps, bogs, and more. Bogs develop in depressions where water flow is low or nonexistent and have stagnant water with low levels of nitrogen and oxygen.