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FACT: #37 Different chromosomes are involved as sources for the different types of color vision deficiency.

Vegetable Coloring Pages Vegetables Coloring Pages

Since the 1890s, pencils happen to be painted yellowish. This is because often the graphite originated China including China yellow-colored was the color of royalty. Therefore , pencil makers began food dyes their pencils yellow to signify they protected the high quality China’s graphite. Plus the color stuck.

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