In Contrast to Earth,reasons Oxygen Does Not Exist in Any

question 28

Multiple Choice

In contrast to Earth,reasons oxygen does not exist in any quantity in the Martian atmosphere could be because

• A) there were never plants to convert carbon dioxide to oxygen like on Earth.
• B) most of the oxygen is chemically combined with iron giving Mars its red color.
• C) the element oxygen is not found alone or combined chemically with hydrogen on Mars.
• D) both answers b and c
• E) both answers a and b

---

Definitions:

Marginal Cost

The cost of producing one additional unit of a good or service, which is used in determining the optimal production level.

Streetlight

A light, typically mounted on a pole, providing illumination for a street or public area to enhance safety and visibility at night.

Willing

Generally refers to being prepared or inclined to do something, indicating a readiness or acceptance.

Public Good

Public goods are goods that provide benefits to all members of a society, without the ability to exclude individuals from enjoying the benefits, such as clean air or national defense.