Do I need multiple Facebook pixels?

Related questions

1. What shape are pixels?
2. What resolution is 1920x1080?
3. Why is pixels rated PG 13?
4. Does Facebook Pixel work with Instagram?
5. What are TV pixels?
6. What is pixel number?
7. Is 1920x1080 always 1080p?
8. Is 2mp equal to 1080p?
9. What is a unique pixel?
10. What is 4k resolution in pixels?

Tags

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2. #pixels
3. #facebook
4. #sites
5. #separately
6. #pixel
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8. #business
9. #through
10. #those
11. #track
12. #associated
13. #websites
14. #always
15. #share
16. #manager
17. #install