An Astronomer Tells You That He Has Discovered a New

question 93

Multiple Choice

An astronomer tells you that he has discovered a new planet that he calls Planet X. All he knows about Planet X so far is that it has a very dense atmosphere with a temperature approximately 5 times warmer than that of Earth. What hypothesis can you reasonably make regarding the atmosphere of Planet X?

• A) The atmosphere of Planet X must not contain any oxygen, so people couldn't live there.
• B) The nitrogen cycle does not operate on Planet X in the same way it does on Earth.
• C) Planet X cannot contain water in any form.
• D) The atmosphere of Planet X has a higher concentration of greenhouse gases than Earth's does.

---

Definitions:

Change Agent

An individual or group that actively facilitates, implements, and supports change within an organization or community.

Social Innovation

The development and implementation of new, effective solutions to social problems or needs that create social value and involve the collaboration of multiple stakeholders.

Nonprofit Sector

a segment of society that is organized to meet public or social goals, where the surplus revenues are reinvested in the organization rather than distributed to shareholders.

Value Proposition

A statement or concept that explains how a product or service solves a problem, meets a need, or provides benefit to customers, thereby offering a reason for them to choose it over alternatives.