Holes - similes and metaphors

Is the following sentence from Holes a simile or metaphor? Stanley's mouth was as dry and parched as the lake.

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Simile or metaphor? It was said that Green Lake was, "heaven on earth," and that Ms. Katherine's peaches were "food for the angels."

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Simile or Metaphor? Stanley's mouth was as dry and parched as the lake.

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Simile or Metaphor? Green Lake was the largest lake in Texas. It was full of clear cool water, and it sparkled like a giant emerald in the sun.

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Simile or Metaphor? Myra's head is empty as a flower pot.

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Simile or Metaphor? My fingers are like little magnets.

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Simile or metaphor? There she is.....The Devil Woman.

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Simile or metaphor? The bus wasn't air conditioned, and the hot, heavy air was almost as stifling as the handcuffs.

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Simile or metaphor? Zero sat as still as a statue.

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Simile or metaphor? His throat felt as if it was coated with sandpaper.

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