The Sun Is Gradually Increasing in Luminosity as It Ages

question 131

Multiple Choice

The Sun is gradually increasing in luminosity as it ages. It is 20% more luminous than it was when it was born. Why isn't this considered to be an explanation for global warming?

• A)The amount of energy the Earth receives from the Sun remains constant regardless of what the Sun does.
• B)The scientists are covering up this potentially valid explanation.
• C)What the Sun was doing millions of years ago is what determines Earth's temperature, since the Earth doesn't respond directly to what the Sun is doing today.
• D)The Sun is increasing in luminosity much too slowly, over many millions of years.

---

Definitions:

Apology

An expression of regret or sorrow for having wronged another, often with an attempt to make amends.

Admitting Fault

The act of acknowledging and taking responsibility for one's mistakes, errors, or shortcomings.

Explaining a "No"

The process of providing reasons or justifications for rejecting a request or proposal.

Damaging "No"

A refusal or rejection that may cause harm, negative consequences, or impair relationships.