What Is the Most Likely Effect of the Increased Concentration

question 21

Multiple Choice

What is the most likely effect of the increased concentration of carbon dioxide in Earth's atmosphere since the 1800s?

• A) increased surface temperatures
• B) decreased ultraviolet radiation at Earth's surface
• C) decreased ocean temperatures
• D) increased atmospheric density

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Definitions:

Validity Effect

A phenomenon where a statement is more likely to be perceived as true the more it is repeated, regardless of its actual veracity.

Repeated Statements

The act of saying or presenting the same information multiple times to reinforce a message or ensure understanding.

Altruism

The belief in or practice of disinterested and selfless concern for the well-being of others.

Selfless Action

An act performed with no expectation of reward or recognition, often motivated by a desire to help or benefit others.