Fact 1: The movement of an air mass over Earth 's surface causes local weather changes.

Fact 2: Earth is our planet.

Given the two facts above, answer the question "where does the movement of an air mass cause local weather changes?" with the following options: 
- outer space
 - mechanical
 - coastlines
 - our planet
 - global warming
 - The atmosphere
 - the sun
 - h2o


 

    our planet     