According to the Text, About What Percent of Retired U

question 2

Multiple Choice

According to the text, about what percent of retired U. S. adults over age 65 rely on Social Security as virtually their only source of income?

• A) about 8%
• B) about 15%
• C) about 31%
• D) about 40%

---

Definitions:

Excited By

Stimulated or activated by an external source, leading to an increased level of energy or activity.

Pressure

The force exerted per unit area; in fluids, it is often caused by gravity acting upon the fluid's mass.

Photoreceptors

Specialized cells located in the retina of the eye that are sensitive to light, enabling vision.

Vertebrate Eye

The complex optical organ in vertebrates that enables vision by detecting light and converting it into electro-chemical impulses in neurons.