A Gamma-Ray Burst (GRB), Such as the One in the Figure

question 91

Multiple Choice

A gamma-ray burst (GRB) , such as the one in the figure below, may be responsible for some of Earth's mass extinctions.GRBs are hard to study because they

• A) can only happen in distant galaxies.
• B) are rare, of short duration, and very narrow.
• C) emit very few gamma rays.
• D) only generate gravitational waves.
• E) are long-lived but rotating.

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Definitions:

Probability Tree

A graphical representation used to illustrate all possible outcomes of a sequence of events and their probabilities.

First Set

In the context of data or series, it is the initial group or sequence under consideration.

Subscribers

Individuals or entities that have agreed to receive services or communications, typically on a recurring basis.

Proportion

A statistical measure that refers to the fraction of the total that possesses a certain attribute or characteristic.