Layer is basicaly image which can have transparent pixels. Every image have at list one layer. One image can consist from at list one layer and at most hundreds or thousands of layers, in Photoshop only limitation for number if layers is your computer memory.
Ozone layer is a layer having only one layer of gas. That layer of gas is ozone layer.
There are seven type of OSI reference model:-Layer 7: The application layer Layer 6: The presentation layer Layer 5: The session layer Layer 4: The transport layer Layer 3: The network layerLayer 2: The data-link layer Layer 1: The physical layer
physical layer Data Link Layer Network Layer Transport layer session layer Presentation layer Application layer
An atmospheric layer that contains layer is stratosphere. It contains ozone layer.
Layer > New > Background from Layer.
Layer 1 - the physical layer
A layer in atmosphere is at risk. The layer is ozone layer.
The layer below the earth's outer layer is mesosphere. It is the 3rd layer.
transport layer
Session Layer - layer 5Transport Layer - layer 4
The stratosphere is a layer in atmosphere. It contains another layer within it. The name of that layer is ozone layer.
Application Layer