TLS Online TPP Program

#Question id: 12674


You  have  a  friend  who  is  wary  of  environmentalists? claims  that  global  warming  could  lead  to  major  biological change on Earth. Which of the following statements can you truthfully make in response to your friend's suspicions?

#Unit 10. Ecological Principles
  1. We know that atmospheric carbon dioxide has increased in the last 150 years.
  2. Through measurements and  observations, we  know  that  carbon dioxide  levels  and  temperature fluctua- tions were directly correlated even in prehistoric times.
  3. Global warming could have significant effects on United States agriculture. 
  4. A, B, C, and D are all correct