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.

Understand the cause and effect of mass extinctions on Earth's biodiversity.

Familiarize with the geological evidence supporting theories of Earth's history, including continental drift and sedimentary rock layers.

Grasp the concept of radiometric dating and its application in determining the age of geological and archaeological findings.

Recognize the diversity of life forms that existed in different geological periods.