English, 28.05.2020 15:58, oktacos

2. Alex has a type of rock called calcite, which sometimes glows. He puts the

calcite under a desk lamp but the calcite does not glow. Then he puts it under

an ultraviolet lamp and the calcite glows. Why does ultraviolet light make the

calcite glow when light from the desk lamp does not?

Answers: 1

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2. Alex has a type of rock called calcite, which sometimes glows. He puts the

calcite un...