| 11. | Leaves, they said, were filled with several different pigments.
|
| 12. | The ancient Egyptians and Chinese used mercury as a skin pigment.
|
| 13. | Under colored light, however, all pigment colors are changed.
|
| 14. | These colours are permanent and not produced by dyes and pigments.
|
| 15. | Not all the pigments of oil paints are available in acrylics.
|
| 16. | Chloroplasts contain the green pigment chlorophyll which is needed for photosynthesis.
|
| 17. | In such proteins, the pigments are arranged to work together.
|
| 18. | The chief commercial uses for selenium today are glassmaking and pigments.
|
| 19. | All other light-stable violet pigments are dull by comparison.
|
| 20. | It is the violet pigment most commonly used today by artists.
|
