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?

Because Calcites are fluorescent and glow with an array of vibrant colors under ultraviolet light but will not glow under a desk lamp.

Explanation:

Calcites are flourescent minerals.

Flourescence occurs when UV light reacts with chemicals in a mineral and makes it glow

answer: look it out

explanation: which sentence in this excerpt from leo tolstoy’s the death of ivan ilyich shows the human tendency to contemplate one’s past life? wrong / "but if that is so," he said to himself, "and i am leaving this life with the consciousness that i have lost all that was given me and it is impossible to rectify it—what then? "correct / he lay on his back and began to pass his life in review in quite a newway.wrong / he was given a large dose of opium and became unconscious, but at noon his sufferings began again.wrong / when the priest came and heard his confession, ivan ilyich was softened and seemed to feel a relief from his doubts and consequently from his sufferings, and for a moment there came a ray of does the character of gerasim the protagonist to attain spiritual freedom in tolstoy’s the death of ivan ilyich?

a. wronggerasim ivan ilyich by caring for him in his last days, regardless of the challenge.b. gerasim treats ivan like his father and performs the duties of a son.c. correctivan ilyich realizes that he has lived an artificial life by comparing his life with gerasim’s.d. wrongivan ilyich feels inferior to gerasim because gerasim leads a healthy literature of nineteenth-century realism depicted everyday life in a realistic way. which statements show that leo tolstoy’s the death of ivan ilyichis a realist text? correct / the description of human struggles in the form of ivan ilyich’s sufferingwrong / the faithfulness of relationships that ivan ilyich experiences toward the end of his lifewrong / the romantic tension that occurs between ivan ilyich and his wifethe difference between superficial and authentic livingthe plot ending with a surprising turn of does the following line from leo tolstoy’s the death of ivan ilyich contribute to the plot at the end of the novella? a. it shows that ivan finally loses the battle of life, and it represents a tragic ending of the story.b. it shows that ivan continues to fight for his life and gives the plot an open ending.c. correctit shows that ivan has finally accepted the end of his life, and it brings finality to the plot.d. it shows that ivan evades death at the end because his illness has been two sentences in this excerpt from leo tolstoy's the death of ivan ilyich show ivan ilyich's struggle with his life and his inability to let go of his past? correct / for three whole days, during which time did not exist for him, he struggled in that black sack into which he was being thrust by an invisible, resistless force.

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