The layer of leaves that blocks most of the sunlight from reaching the ground in the rainforest is called the canopy layer. This dense layer of vegetation helps regulate temperature and humidity levels in the rainforest ecosystem.
The top.
bottom-most layer
canopy layer
The subterranean layer is the layer under ground :)
Forest floor.
the forest floor
forest floor
the lower layer
The layer is the canopy.
Emergent Layer
Shrub layer