From where do scientist measure the amount of carbon dioxide that was present in the atmosphere 800,000 years ago?Group of answer choicesFrom measurements from NASA satellitesFrom just inferring the numbers from extrapolation of a graphFrom atmospheric bubbles trapped in ice from that timeFrom analyzing wood from fossilized trees from that time

7. Before the industrial revolution of the early 1800s, the earth’s geological record for Carbon Dioxide (up to 800,000 years ago) fluctuated between following levels

Multiple Choice QuestionWhat is the name of the graph that shows measurements of atmospheric carbon dioxide beginning in the 1950s at the Mauna Loa Observatory in Hawaii?Multiple choice question.Kleinberg curveKinning curveKeeling curveKleinfelter curve

How often did Charles Keeling collect samples of carbon dioxide at the Mauna Loa Observatory?

In predicting climate change, what are atmospheric carbon dioxide (CO2) levels used as an indicator of?Group of answer choicesHow much the temperature on Earth will increaseHow much pollution is in Earth's atmosphereHow many extreme weather events there will be in the futureHow high the Earth's oceans will be in the futureHow well we can measure the molecular content of the atmosphere

According to atmospheric temperature and CO2 concentration records derived from Antarctic ice cores, Earth’s climate has undergone significant changes over the past 200,000 years. Click on the image on the right to see two graphs. The upper graph shows the variation in atmospheric CO2 concentration, and the lower graph shows the variation in air temperature. Both graphs cover the same time period from approximately 200,000 years ago up until the year 1950, which is represented as year 0 on the graphs.Describe TWO major causes for the predicted 200 ppm increase in atmospheric CO2 concentration between 1950 and 2050.