Directions:Write the name of the layer or part of the atmosphere that answers the riddles. Use the link below to search for the answers.

1. I have the coldest temperature of the atmosphere.
   Who am I?_______________________________
   
   
2. I am where most of the weather occurs.
   Who am I?_______________________________
   
   
3. I contain most of the ozone layer.
   Who am I?_______________________________
   
   
4. Artificial satellites orbit the earth here.
   Who am I?_______________________________
   
   
5. I protect the earth from meteoroids.
   Who am I?_______________________________
   
   
6. I protect the earth from ultraviolet rays given off by the sun.
   Who am I?_______________________________
   
   
7. I am where radio waves are bounced back to the earth's surface.
   Who am I?_______________________________
   
   
8. I extend to an average altitude of about 12 km.
   Who am I?_______________________________
   
   
9. My temperature may reach as high as 2000 degrees celsius.
   Who am I?_______________________________
   
   
10. Convection currents are produced in my layer.
    Who am I?_______________________________
    
    
11. I am the layer that touches the surface of the earth.
    Who am I?_______________________________
    
    
12. I am the layer that reaches the highest altitude.
    Who am I?_______________________________
    
    
13. The jet stream is located here.
    Who am I?_______________________________
    
    
14. I extend to an alititude from about 50 km to 80 km.
    Who am I?_______________________________
    
    
15. I am the layer that interacts with living things.
    Who am I?_______________________________
    
    
16. I extend upwards from an altitude of about 550 km to 1000 km.
    Who am I?_______________________________
    
    
17. The air pressure is the greatest here.
    Who am I?_______________________________
    
    
18. Electrically charged particles called ions are found here.
    Who am I?_______________________________
    
    
19. My temperature drops about 6.5 degrees Celsius per km.
    Who am I?_______________________________
    
    
20. I extend to an altitude of about 12 km to 50 km.
    Who am I?_______________________________