Liquid Water Cannot Exist for Very Long on the Surface

question 20

Multiple Choice

Liquid water cannot exist for very long on the surface of Mars today because

• A) it gets rapidly destroyed by intense solar radiation
• B) its surface temperature is too high
• C) it rapidly reacts with the Martian surface to form peroxides
• D) its atmosphere is too thin

---

Definitions:

Household Income

The combined gross income of all members of a household, which is used to determine the household's economic status.

Liberal Theories

A set of ideas in political and economic thought emphasizing freedom, democracy, and the importance of individual rights.

Black Poverty

A term referring to the disproportionately high rates of poverty among Black or African American communities.

Human Capital

The accumulation of knowledge and skills that make a worker productive.