PRE-ASSESSMENT (Layers of the Atmosphere)

1.  What is the CORRECT order of earth's atmospheric layers from its surface?

• stratosphere, mesosphere, troposphere, thermosphere, exosphere

• stratosphere, troposphere, mesosphere, thermosphere, exosphere

• troposphere, mesosphere, stratosphere, thermosphere, exosphere

• troposphere, stratosphere, mesosphere, thermosphere, exosphere

During a long-haul flight, pilots often fly near the top of the troposphere or slightly into the lower stratosphere. What is the main reason for this?

• To avoid turbulence and bad weather, which mostly occur in the lower troposphere.

•    To stay within the warmest layer of the atmosphere for passenger comfort.

  
                                                   
  
                                                         

• To increase oxygen levels for better engine performance.

  
  

• To reduce the risk of bird strikes, which are more common at lower altitudes.

Mountaineers preparing for a high-altitude climb wear thick clothing. How does this relate to the temperature changes in the troposphere?

• The temperature increases with altitude,so they need insulation.

                         

•  

    The temperature decreases with altitude, requiring warm clothing.

                                                               

• The temperature remains constant, but strong

  winds make it feel colder.

                        

• The temperature changes unpredictably, so thick clothing is just a precaution.  

During summer, people experience intense heat due to changes in the atmosphere. Which action helps protect you from the harmful effects of excessive sun exposure?

• Wearing light-colored clothing and applying sunscreen
                 

•                  

  Staying outside for long hours to get used to the heat
                     

• Wearing heavy jackets to trap body heat
        

• Avoiding drinking water to prevent sweating      

Scientists are concerned about the depletion of the ozone layer. What could be a possible consequence of this?

 

•  Increase in harmful ultraviolet (UV) radiation reaching Earth

• Decrease in Earth's overall temperature

•    More oxygen availability in the stratosphere

• Reduction in global warming effects