In
auto racing, this flag can signal the start of the race or end of a caution period when waved from the start tower of the course, or when waved from a marshal post, it can signal the end of a hazardous section of the course.
Public domainPublic domainfalsefalse
This image of simple geometry is ineligible for
copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
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