Homework Answers
carbon dioxide concentration was very high when the earth was formed. Earths second atmosphere emerged from lighter gases, and lead to formation of gases of carbon dioxide and inert gases
Carbon dioxide concentrations dropped from 7,000 parts per million about 500 million years ago to as low as 180 parts per million during the Quaternary glaciation of the last two million years
The high carbon dioxide levels have led to high temperatures and raised sea level.
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Why is there so much concern over the level of carbon dioxide in the atmosphere nowadays...
Question Why is the carbon cycle no longer able to maintain the levels of carbon dioxide...
Question Why is the carbon cycle no longer able to maintain the levels of carbon dioxide in the atmosphere? Select the correct answer below: O the increase in the burning of oil, which increases the level of carbon dioxide produced and released into the atmosphere O the increase in the burning of coal, which increases the level of carbon dioxide produced and released into the atmosphere O the increased use of limestone, which releases carbon dioxide into the atmosphere O...
Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to...
Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to infrared light. decreases the transparency of the atmosphere to visible light. increases the transparency of the atmosphere to visible light. increases the transparency of the atmosphere to infrared light. Which of the following statements about global warming is NOT true? Computer models indicate that only human contributions to atmospheric carbon dioxide can account for recent global temperature rises Atmospheric carbon dioxide levels have risen...
1/ Carbon dioxide is entering the atmosphere at _____. a. the same rate as it is...
1/ Carbon dioxide is entering the atmosphere at _____. a. the same rate as it is being removed b. rates that vary regionally and are hard to verify accurately c. a lower rate than it is being removed d. a greater rate than it is being removed 2/ Earth's atmosphere consists mostly of _____. a. water vapor and carbon dioxide b. nitrogen and oxygen c. nitrogen and carbon dioxide d. water vapor and nitrogen 3/ Which definition best applies to...
37. What is the main cause of the increase in the amount of carbon dioxide in...
37. What is the main cause of the increase in the amount of carbon dioxide in Earth's atmosphere over the past 150 years?
Concentration of CO2 in the Atmosphere Levels of carbon dioxide (CO2) in the atmosphere are rising...
Concentration of CO2 in the Atmosphere Levels of carbon dioxide (CO2) in the atmosphere are rising rapidly, far above any levels ever before recorded. Levels were around 278 parts per million in 1800, before the Industrial Age, and had never, in the hundreds of thousands of years before that, gone above 300 ppm. Levels are now nearing 400 ppm. Table 1 shows the rapid rise of CO2 concentrations over the last 50 years, also available in CarbonDioxide.1 We can use...
Would you expect rising levels of carbon dioxide in the atmosphere to affect C4, C3, or...
Would you expect rising levels of carbon dioxide in the atmosphere to affect C4, C3, or CAM plants differently? Why or why not?
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early...
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early atmosphere go (order is water then carbon dioxide)? O both into ocean O water into ocean carbon dioxide into plants O water into plants carbon dioxide into ocean O both went into plants Question 2 2 pts How long ago did life on earth emerge (according to science)? 3.9 billion years 600 million years ago 23 million years ago 13.8 billion years ago D...
Question 5 2 pts We know that the Carbon used to increase Carbon Dioxide rates over...
Question 5 2 pts We know that the Carbon used to increase Carbon Dioxide rates over the past 60 years have come from underground. How do we know that it was from fossil fuels and not volcanoes? Ono spike in Argon levels Argon levels have also increased Carbon 14 levels have greatly increased the past few decades we don't have any way to know
2 pts Question 5 We know that the Carbon used to increase Carbon Dioxide rates over...
2 pts Question 5 We know that the Carbon used to increase Carbon Dioxide rates over the past 60 years have come from underground. How do we know that it was from fossil fuels and not volcanoes? Ono spike in Argon levels Argon levels have also increased Carbon 14 levels have greatly increased the past few decades we don't have any way to know No new data to save. Last checked at 5:35nm
If a truck gets 16 miles per gallon on average, how much carbon dioxide is emitted...
If a truck gets 16 miles per gallon on average, how much carbon dioxide is emitted into the atmosphere when the truck travels 265 miles? Express your answer rounded to the nearest tenth of a pound of carbon dioxide lb of CO2
Question Why is the carbon cycle no longer able to maintain the levels of carbon dioxide in the atmosphere? Select the correct answer below: O the increase in the burning of oil, which increases the level of carbon dioxide produced and released into the atmosphere O the increase in the burning of coal, which increases the level of carbon dioxide produced and released into the atmosphere O the increased use of limestone, which releases carbon dioxide into the atmosphere O...
Increasing the concentration of greenhouse gases in Earth's atmosphere decreases the transparency of the atmosphere to infrared light. decreases the transparency of the atmosphere to visible light. increases the transparency of the atmosphere to visible light. increases the transparency of the atmosphere to infrared light. Which of the following statements about global warming is NOT true? Computer models indicate that only human contributions to atmospheric carbon dioxide can account for recent global temperature rises Atmospheric carbon dioxide levels have risen...
37. What is the main cause of the increase in the amount of carbon dioxide in Earth's atmosphere over the past 150 years?
Concentration of CO2 in the Atmosphere Levels of carbon dioxide (CO2) in the atmosphere are rising rapidly, far above any levels ever before recorded. Levels were around 278 parts per million in 1800, before the Industrial Age, and had never, in the hundreds of thousands of years before that, gone above 300 ppm. Levels are now nearing 400 ppm. Table 1 shows the rapid rise of CO2 concentrations over the last 50 years, also available in CarbonDioxide.1 We can use...
2 pts Question 1 Where did most of the water and carbon dioxide from Earth's early atmosphere go (order is water then carbon dioxide)? O both into ocean O water into ocean carbon dioxide into plants O water into plants carbon dioxide into ocean O both went into plants Question 2 2 pts How long ago did life on earth emerge (according to science)? 3.9 billion years 600 million years ago 23 million years ago 13.8 billion years ago D...
Question 5 2 pts We know that the Carbon used to increase Carbon Dioxide rates over the past 60 years have come from underground. How do we know that it was from fossil fuels and not volcanoes? Ono spike in Argon levels Argon levels have also increased Carbon 14 levels have greatly increased the past few decades we don't have any way to know
2 pts Question 5 We know that the Carbon used to increase Carbon Dioxide rates over the past 60 years have come from underground. How do we know that it was from fossil fuels and not volcanoes? Ono spike in Argon levels Argon levels have also increased Carbon 14 levels have greatly increased the past few decades we don't have any way to know No new data to save. Last checked at 5:35nm
If a truck gets 16 miles per gallon on average, how much carbon dioxide is emitted into the atmosphere when the truck travels 265 miles? Express your answer rounded to the nearest tenth of a pound of carbon dioxide lb of CO2
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