B) herman von helmholtz
The trichromatic color theory<span> began in the 18th century, when </span>Thomas Young<span> proposed that color vision was a result of three different </span>photoreceptor cells<span>. </span>Hermann von Helmholtz<span> later expanded on Young's ideas using color-matching experiments which showed that people with normal vision needed three wavelengths to create the normal range of colors. Physiological evidence for trichromatic theory was later given by </span>Gunnar Svaetichin<span> (1956).</span>
Answer:
A or C
Explanation:
They were stone slabs with engravings or carvings meant to give glory to kings, but they also often went above doorways. I would say A though, since they didn't always go above doors.
sorry I can only answer q1
Explanation:
answer is 1= oVerLapPing
capitals are missing letters spells overlapping
A few are <span>À la claire fontaine.Ah! vous dirai-je, maman, <span>Angels We Have Heard on High.</span></span>
