What Is the Closest Star to the Sun

question 22

Multiple Choice

What is the closest star to the Sun?

• A) Barnard's Star
• B) Sirius
• C) Proxima Centauri
• D) the Earth
• E) we won't know the answer to this until we can travel to the stars

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Definitions:

Prothrombin

A protein produced by the liver and converted into thrombin during blood clotting. Its activity is essential for coagulation.

Colorectal Cancer

Colorectal cancer is a type of cancer that begins in the colon or rectum, parts of the large intestine, and is often detectable by screening tests before symptoms develop.

Anemia

A condition characterized by a deficiency of red blood cells or hemoglobin, leading to fatigue, weakness, and shortness of breath.

Cathartic

Relating to the process of emotional release and purification, often described in the context of art or therapy; also refers to substances that induce the evacuation of the bowels.