Your Friend Is Wary of Environmentalists' Claims That Global Warming

question 11

Multiple Choice

Your friend is wary of environmentalists' claims that global warming could lead to major biological change on Earth. Which of the following statements can you use in response to your friend's suspicions?

• A) We know that atmospheric carbon dioxide has decreased over the past 150 years.
• B) Through measurements and observations, we know that carbon dioxide levels and temperature fluctuations are indirectly correlated.
• C) Global warming could have minor effects on agriculture in the United States.
• D) Scientist have evidence that climate change has already altered primary production, as well as ecosystem services.

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Definitions:

Neurological Trauma

Physical injury to the nervous system, which can result in temporary or permanent damage.

Short-Term Memory

The capacity for holding a small amount of information in an active, readily available state for a short period.

Hypothesis

A proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Causal Relationship

A connection between two events where one directly results in the other, indicating a cause-and-effect scenario.