If I have a lot of apps on my iphone or iPod will it drain the battery quicker?

If I have a lot of apps on my iphone or iPod will it drain the battery quicker?

Yes, but if you press the home button twice to where it shows you which apps are running. If you hold down on the screen on the app where they become shaky with the "x" button at the top you can close and stop them from running.