Since this is not my area of expertise, I searched Google under the key words "convection currents wind" (my best guess) to get these possible sources:
http://www.google.com/search?client=safari&rls=en&q=convection+currents+wind&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words (like the alternatives offered) to do your own search. Also see http://hanlib.sou.edu/searchtools/.
Some parts of the atmosphere are warmer than others. This causes air particles to-------,which in turn causes the wind.
Moves heat by conduction
form convestion currents
move by radiation
become more dense.
I am just having a hard time finding the answer to this question.
2 answers
You are from connections academy. Look in the book.