creative common license youtube|how to use creative commons videos on youtube|Money Making Skills

how to get creative common easily and legally watch in this video.
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video link No.1
https://www.pexels.com/@distill
video link No.2
https://www.pexels.com/@pixabay
video link No.3
https://www.pexels.com/@vimeo
video link No.4
https://www.pexels.com/@free-videos

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