The Ultimate Source of Energy That Powers the Sun Is

question 4

Multiple Choice

The ultimate source of energy that powers the Sun is

• A)chemical potential energy of hydrogen burning into helium.
• B)thermal energy of the hydrogen atoms in the Sun.
• C)mass energy of hydrogen fusing into helium.
• D)kinetic energy of the orbital motion of the Sun.
• E)gravitational potential energy of the contraction of the gas cloud that formed the Sun.

---

Definitions:

Glucagon

A hormone produced by the pancreas that increases blood glucose levels, acting as an antagonist to insulin.

Pancreatic Islet Cells

Cells located in the pancreas that produce hormones like insulin and glucagon, crucial for regulating blood sugar levels.

Adrenal Cortex

The outer layer of the adrenal glands that produces steroid hormones such as cortisol and aldosterone.

Gonads

Primary sex organ; produce gametes and sex hormones.