Exam 3 - Exam 3 Question 1 3 out of 3 points The extent of...

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Exam 3 Question 1 3 out of 3 points The extent of Arctic sea ice has started to shrink, while sea level has already started to rise around the world, as a result of global warming.
Question 2 3 out of 3 points Scientists have extracted long cores from the Antarctic ice sheets. How far "back in time" do these cores go? In other words, they can tell us the climate on Earth only up to about ______ years ago.
Question 3 3 out of 3 points
Polar bears are literally drowning due to low levels of Arctic summer sea ice, as they depend on this ice to rest when they are out hunting.
Question 4 3 out of 3 points In the past 20 years, how has the volume of the polar ice caps changed?
Question 5 3 out of 3 points Atmospheric CO 2 concentrations have increased concurrently (at the same time as) global temperature.
Question 6 3 out of 3 points What are some implications of global climate change on human health? Select all that apply.
Answers: increased disease, as warmer temperatures are advantageous to insects that spread disease greater potential for heat stroke and hazards from floods and hurricanes Correct Answers: increased disease, as warmer temperatures are advantageous to insects that spread disease greater potential for heat stroke and hazards from floods and hurricanes Question 7 3 out of 3 points Climate oscillations, which include ice ages and warm periods, have a documented pattern called ____________ Cycles.
Question 8 3 out of 3 points The IPCC (Intergovernmental Panel on Climate Change) was composed of 50 scientists, one from each state within the U.S.
Correct Answer: False Response Feedback: Correct, this is FALSE. This panel included 3500 scientists from many different countries. Question 9 2.01 out of 3 points What types of data are scientists examining to determine climates of the past, in an effort to better understand current climate conditions? Check all that apply.

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