What is a representative concentration pathway? How does the +2.6 compare with the +8.5?
What will be an ideal response?
"In IPCC AR5, researchers investigated scenarios representing four different sets of assumptions about the level of anthropogenic emissions. These scenarios, called representative concentration pathways (RPCs), projected significantly different levels of radiative forcing by the year 2100." See Figure 18-17 for a comparison of +2.6 and +8.5 +2.6 represents what would happen if we curb greenhouse gas emissions immediately and +8.5 assumes that we continue with our current population growth rate and do not change our use of technology.
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Which of the following types of faults does NOT generate earthquakes?
A. normal fault B. All types of faults can generate earthquakes. C. reverse fault D. thrust fault E. strike-slip fault
Which of the following is NOT true of languages?
A) Language is a system of communication through speech. B) Language is a collection of sounds that a group of people understands to have the same meaning C) All languages have a literary tradition, or a system of written communication D) Approximately 85 languages are spoken by at least 10 million people E) About 304 languages are spoken by between 1 million and 10 million people
For the reaction 2C ? A + B, 0.01 mol of A is formed during the first 15 seconds of the reaction. Assuming that the rate of reaction remains constant for two minutes, which of the following statements is true?
A) After 2 minutes 0.08 moles of B were produced. B) After 2 minutes 0.16 moles of C were consumed. C) both a and b D) neither a nor b
Why is the ocean salty?
A. Material from volcanos. B. Material from hydrothermal vents. C. Material from rivers. D. All of the above. E. None of the above.