Which of the following is causing widespread concern?
A) As atmospheric oxygen levels decline, the ozone layer is being destroyed.
B) As atmospheric carbon dioxide levels decline, the ozone layer is being destroyed.
C) As levels of methane decline, average global temperatures are increasing.
D) As levels of carbon dioxide increase, average global temperatures are increasing.
Question 2
Insecticides would be most useful in combating
A) mosquitoes that spread malaria.
B) weeds that infect our agricultural fields.
C) bacteria, such as Salmonella, which sometimes contaminate meat.
D) fungi that contribute to molds and mildew that lead to respiratory infections.
Hill plots for oxygen binding to myoglobin and hemoglobin
Mean atmospheric water vapor
How Oxygen-16 Becomes More Concentrated in Glacial Ice
Measuring Oxygen Saturation
The Mechanism of Oxygen Binding by Heme Proteins
In 1974 a UC Berkeley group fired an oxygen nucleus at a californium target. Giv