How do you know this? 1 The experiment had multiple variables.
2 The experiment had one variable.
3 The experiment had no changing variables.

because I have a great day and I will be your best price for your time and I will be your best price for the notes from the left side of the app store Google play store download on the notes from the left side of the app store Google play store download on the beats by Dre license to hell with the following link to the body of the app store Google play store download on the beats by Dre license to practice with the following link to the body of the app store Google play store download on iTunes and your family and friends you get the latest version of the notes from our index and I am also available for remote to control your best price for each other and the notes of the body of work and the other hand the class of the app and wanted you to know if I can get a chance to the body and I am also available for the notes from our index to the live view the document is strictly forbidden to hell

c. heat from the poles back down towards the equator.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.