In which layer would you find the most organic matter? a. bedrock
b. horizon c
c. subsoil
d. horizon a

I think it is subsoil but i’m not completely sure

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for