What was the MOST significant environmental problem facing Indonesia in the early twenty-first century? A. air pollution from personal vehicles B. deforestation caused by illegal logging C. desertification caused by local farming practices D. acid rain caused by the country's mining industry

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change