Why Do Astronomers Consider Gamma-Ray Bursts to Be One of the Greatest

question 75

Multiple Choice

Why do astronomers consider gamma-ray bursts to be one of the greatest mysteries in astronomy?

• A)because they are so rare
• B)because we know they come from pulsating variable stars but don't know how they are created
• C)because the current evidence suggests that they are the most powerful bursts of energy that ever occur anywhere in the universe,but we don't know how they are produced
• D)because current evidence suggests that they come from our own Milky Way,but we have no idea where in the Milky Way they occur
• E)because current evidence suggests that they come from massive black holes in the centers of distant galaxies,adding to the mystery of black holes themselves

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Definitions:

Dyspnea

A medical term referring to the sensation of difficult or uncomfortable breathing, often described as feeling short of breath.

Drops/Ml

A measurement indicating the number of drops contained in one milliliter of liquid, often used in medication dosing.

D₅W

A solution containing 5% dextrose (sugar) in water, used intravenously to supply calories and fluids.

Infuse

To introduce a substance, such as a drug or nutrient, into the body, typically through intravenous delivery.