The Support Library is a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs. Compatible on devices running API 14 or later.
The Resources Library is a static library that you can add to your Android application in order to use resource APIs that backport the latest APIs to older versions of the platform. Compatible on devices running API 14 or later.