can u make the question clear
Session
session layer
physical
physical
The application layer.
Session layer.The session layer provides the mechanism for opening, closing and managing a session between end-user application processes, i.e., a semi-permanent dialogue.
papillary layer is responsible for fingerprints
CFC's are responsible. They deplete the ozone layer.
The ozone layer is responsible for absorbing harmful rays from the sun. These are UV rays.
physical layer
The network layer is the layer that is responsible for routing packets on the network. This is the layer in which Internet protocol operates. In the seven layer OSI model, the network layer is the third layer from the bottom.
The application layer (layer 7) is responsible for file transfer operations.