If the Distance of a Galaxy at a Redshift Z

question 44

Multiple Choice

If the distance of a galaxy at a redshift z = 0.5 is 1,800 Mpc, how many years back into the past are we looking when we observe this galaxy?

• A) 500 million years
• B) 2 billion years
• C) 6 billion years
• D) 9 billion years
• E) 10 billion years

---

Definitions:

Organizational Structure

The system that outlines how certain activities are directed in order to achieve the goals of an organization, including rules, roles, and responsibilities.

Executive Branch

The branch of government responsible for enforcing laws, typically headed by the President or Prime Minister, and including various departments and agencies.

Managerial Presidency

A concept where the President manages the executive branch of government, emphasising efficiency, effectiveness, and administrative control.

Scientific Expertise

The specialized knowledge and skills in a field of science, often used to inform decision-making or research.