Found at the lowest point of a large drainage area, these seasonal, marsh-like ponds collect and store water from rain and runoff. Unlike vernal pools, playas generally fill when temperatures are unsuitable for plant growth, and often the water is salty, alkali or both.
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The correct answer is: [C]: " granite " .
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The answer is very small crystals
Answer: The Earth's crust that formed these mountains was once covered with an ocean
