Grand Unified Theories Are Very Attractive Because They Can Explain

question 1

Multiple Choice

Grand unified theories are very attractive because they can explain:

• A) why we have five fundamental forces in the universe today
• B) why the Big Bang never made any antimatter
• C) why the universe consists mostly of matter
• D) why the CMB is very smooth
• E) what happens inside a black hole

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Definitions:

Brachial Artery

A major blood vessel of the upper arm that supplies blood to the arm and hand.

Antecubital Space

The inner side or bend of the elbow; the site at which the brachial artery is felt or heard when a pulse or blood pressure is taken.

Rapid Breathing

Breathing at an abnormally fast rate, which can be a symptom of various medical conditions or distress.

Degrees Celsius

A scale and unit of measurement for temperature where water freezes at 0 degrees and boils at 100 degrees under standard conditions.