1. Decide whether the event shifts the supply or demand curve (or perhaps both).\ 2. Decide in which direction the curve shifts. 3. Use the siupply-and-demand diagram to see how the shift changes the equilibrium price and quantity.
Man-made causes of depletion of ozone layer: The main cause for the depletion of ozone is determined as excessive release of chlorine and bromine from man-made compounds such as chlorofluorocarbons (CFCs).
How does ozone protect us? Up in the stratosphere, ozone (O3) acts as a natural sunscreen to protect us against ultraviolet (UV) radiation. That's the stuff that gives us sunburns. Because of the ozone layer, most of the harmful radiation never reaches Earth. But, as more and more of it does, we're at greater risk for skin and eye problems. People living near the Equator should be just as concerned about sun damage as people living where the ozone layer is thinning. The higher the sun is in the sky, the greater the direct sunlight reaching the Earth.