A graph of atmospheric carbon dioxide concentration over time is shown below. Scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. Which of the following provides the best explanation for the increase?
-eruptions of large volcanoes
-use of fossil fuels by human
- natural fluctuations of climate
-photosynthesis by phytoplankton
Answers: 2
Other questions on the subject: Biology
Biology, 22.06.2019 17:00, gibbss80stu
What is one affect on the australian environment due to the introduction of non-native european rabbits
Answers: 1
Biology, 22.06.2019 23:30, kyleeeeee94
How do light years astronomers to determine the ages of distant objects in space ?
Answers: 1
You know the right answer?
A graph of atmospheric carbon dioxide concentration over time is shown below. Scientists are investi...
Questions in other subjects:
Physics, 08.08.2019 22:20
