The photograph shows soil layers. What is the dark layer of soil at the top of
the photograph?

The photograph shows soil layers .The darkest layer of the soil at the top of the photograph is The Horizon.

Explanation:

Called the A horizon, the topsoil is usually the darkest layer of the soil because it has the highest proportion of organic material.

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )