If marshes, bogs and swamps are very important biomes, then what are important biomes?

Answer choices:
- important habitats
 - fruits, vegetables and plants
 - retaining heat
 - stars, comets and planets
 - cats, dogs and humans
 - absorb light energy
 - marshes, bogs, and swamps
 - remains of prehistoric life

 

       marshes, bogs, and swamps   