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Here are some options for finding background information:
At this stage in your research, looking at relevant websites can be help you narrow or refine your topic. Look for information from government websites and organizational websites to find background information.
Utilize your textbooks
Peruse your textbooks to find background information on your selected topic.
Find books in the library
Find reference books like encyclopedias or dictionaries in the library's catalog that provide background information on your topic in the library.