A fast moving air current found in between 10 and 15 km abov
     \"A fast moving air current found in between 10 and 15 km above the earth\'s surface, V the large horizontal temperature contrast\" and this describes the  Westerly flows  Jet streams  General circulations  Upper level flow  Which hot and dry air mass is most likely coming into the US from Mexico.  Continental arctic  Maritime polar  Continental tropical  Maritime tropical  Which of the following is a description that fits the phenomenon in figure below?  Sea breeze  Coastal margin circulation  Caused due to differential heating rates  All of the above  Why is monitoring ambient air quality important?  Aid in research studies and analysis  Provide guidance in the event of emergencies  Serves as an important tool to identify control measures  All of the above 
  
  Solution
10) Answer- a
Jet streams are fast moving air current found in between 10-15 Km above earth surface caused by large horizontal temperature contrast.
11) Answer - c
continental arctic will be cool and dry because it origintes in low temperature arctic region.
maritime polar and maritime tropical- will not be dry as it absorbs moisture while passing through sea. Also maritime polar will be cool (& not hot) because it originates in polar regions.
therefore answer is c
12) Answer- d
All statements are correct.
13) Answer- d
All statements are correct

