How Do We Know What Goes on Under the Surface

question 21

Multiple Choice

How do we know what goes on under the surface of the Sun?

• A)We have X-ray images from satellites of the interior of the Sun.
• B)Astronomers create mathematical models that use the laws of physics,the Sun's observed composition and mass,and computers to predict internal conditions.
• C)We have sent probes below the surface of the Sun.
• D)By measuring Doppler shifts,we observe vibrations of the Sun's surface that are created deep within the Sun.
• E)both B and D

---

Definitions:

Laser Ablation

A technique that uses lasers to remove material from the surface of an object or through tissue removal in medical procedures by vaporizing the unwanted substance.

Uterine Lining

The layer of cells lining the uterus, known as the endometrium, which thickens in preparation for pregnancy.

Menorrhagia

Excessive or prolonged menstrual bleeding at regular menstrual cycle intervals, which can lead to anemia and signal underlying health issues.

Excessive Bleeding

A condition where an individual loses blood more than what is considered normal, potentially leading to medical emergencies.