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Read this information from the National Oceanic and Atmospheric Administration describing how sand forms:

The tan color of most sand beaches is the result of iron oxide, which tints quartz a light brown. It also changes the color of feldspar, which has a brown to tan tint in its original form. Black sand comes from eroded volcanic material, such as lava, basalt rocks, and other dark-colored rocks and minerals. It’s typically found on beaches near volcanic activity. Black-sand beaches are common in Hawaii, the Canary Islands, and the Aleutians.

Now, use the following dictionary entry to help complete the sentences that follow.

tint \tint\

noun

a shade or variety of color
an artificial dye
verb

to give a small amount of color to (something)

In the sentence, “The tan color of most sand beaches is the result of iron oxide, which tints quartz a light brown,” the word tints is a
.

In the sentence, “It also changes the color of feldspar, which has a brown to tan tint in its original form,” the word tint is a