Capa de ozono

The video explains the ozone layer's location at altitudes between 15 and 50 km, where it has a higher concentration of ozone gas. This layer absorbs 97-99% of the Sun's harmful ultraviolet radiation. Ozone is formed when ultraviolet light breaks apart oxygen molecules, creating free oxygen atoms that react with other oxygen molecules to form ozone.

At what altitude range is the ozone layer primarily located?

• 100 to 150 km

• 5 to 10 km

• 15 to 50 km

• 60 to 100 km

What percentage of the Sun's ultraviolet radiation is absorbed by the ozone layer?

• 100%

• 97 to 99%

• 70 to 80%

• 50 to 60%

How is ozone formed in the upper atmosphere?

• By the fusion of hydrogen atoms

• Through the breakdown of carbon dioxide

• By the combination of nitrogen and oxygen

• When ultraviolet light breaks apart oxygen molecules

What happens to oxygen molecules when exposed to ultraviolet light in the upper atmosphere?

• They form water vapor

• They turn into nitrogen

• They break apart into free oxygen atoms

• They become carbon dioxide

What do free oxygen atoms react with to form ozone molecules?

• Carbon molecules

• Oxygen molecules

• Hydrogen molecules

• Nitrogen molecules