Which of the following is evidence for how the composition of the atmosphere has changed on Earth over time?
a. Bands of iron found in rock layers show that the Earth's atmosphere became oxygenated by photosynthetic cyanobacteria millions of years ago.
b. Frequent volcanic eruptions have caused the Earth's atmosphere to fill with sulfur aerosols dropping the temperature globally by 5 degrees.
c. Multiple ice ages in the 18th century have caused a shift in atmospheric circulation on present day Earth.
d. Over the past 50 years, greenhouse gas concentrations have rapidly decreased in the atmosphere.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Which of the following is evidence for how the composition of the atmosphere has changed on Earth over time? a. Bands of iron found in rock ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
How do enzymes interact only with specific substrates?
Answers (1)
What advantage does the phylogenic classification system have over the Linnaean system? A. The phylogenic system ranks organisms in order of importance; The Linnaean system does not. B.
Answers (2)
Just as the unit describes many amazing ecosystem creatures, Gallo also shares some incredible species that were observed at the bottom of the ocean.
Answers (1)
2. The mRNA for a well-known secretory protein is isolated and placed in a test tube in the presence of all the substances required for in vitro protein synthesis.
Answers (1)
True or False - Could Usain Bolt be faster? Question 10 options: True False
Answers (1)
New Questions in Biology
Which of the following build (s) new strands of DNA? View Available Hint (s) Which of the following build (s) new strands of DNA? The origins of replication The lagging strand The leading strand DNA polymerases Parental DNA
Answers (1)
What needed materials enter the cell through the cell membrane?
Answers (1)
Which type of condition is acquired in a hospital or clinic setting?
Answers (1)
Long chains of amino acids are found in?
Answers (1)
Which one type of analytics would be used to analyze hospital readmission rates for heart failure? a. opportunistic b. descriptive c. predictive d. prescriptive?
Answers (1)