Concept:Decomposers need warm, moist conditions to break down dead organic matter quickly.
Explanation:Decomposition is the breakdown of dead plants and animals by microorganisms such as bacteria and fungi.
Tropical rainforests have high rainfall and constant humidity.
This availability of moisture keeps the soil and leaf litter damp throughout the year.
Moist conditions help microorganisms grow and remain active.
As a result, dead organisms decompose faster in tropical rainforests than in drier or colder biomes.
Consistent cool temperature is incorrect because rainforests are warm.
Constant daylight and more plants do not directly speed up decomposition.
Answer:B. of availability of moisture