N. Troposphere
14. In which layer do virtually all weather phenomena take place?
L Exosphere
M. Stratosphere
15. Which layer of the atmosphere contains the ozone layer?
R. Mesosphere
S. Stratosphere
T. Thermosphere
16. Why is the presence of ozone above the troposphere important for the survival of living things on
Earth?
F. It warms Earth's surface.
G. It offers protection from the Sun's harmful UV rays.
H.It helps in cloud formation
17. Which of the following correctly describes the stratosphere?
R. It is an atmospheric ozone layer.
S. It has high concentration of ionized particles
T. It has a layer important to telecommunications.
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