The Intergovernmental Panel on Climate Change's (IPCC) most recent assessment report in 2014 asserted what?
a) Earth's climate is changing, but there is no evidence that human emissions have any correlation with this change
b) climate can be influenced by humans, but no significant changes in climate have happened in the past 50 years
c) it is 95-100% certain that humans have been the dominant cause of significant climate change over the past 50 years
d) human activities cannot cause climate change - climate change is caused by volcanoes and plate tectonics
C
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The collective term for any process that produces a mountain belt is called ________
A) orogenesis B) diagenesis C) petrogenesis D) subduction
?Match each term with the most appropriate description.
A. populations of different species living in a particular place, and potentially interacting with each other B. a group of individuals of the same species living in a particular place C. parts of the atmosphere, hydrosphere, and geosphere where life is found D. the fundamental structural and functional unit of life E. an individual living being F. a community of different species interacting with one another and with their nonliving environment of matter and energy G. organisms, such as green plants, that make the nutrients they need from compounds and energy obtained from their environment H. animals that eat mostly green plants I. those who eat both plants and animals J. those who obtain nourishment by releasing nutrients from the wastes or remains of plants and animals
Which of the following reactions involves the addition of different groups to the two ends of a double bond?
A) bromination B) hydrogenation C) both a and b D) neither a nor b
Why are the melting points of cis-unsaturated fatty acids lower than those of trans-unsaturated fatty acids?
A) The cis-unsaturated fatty acid chains are shorter. B) The trans-unsaturated fatty acid chains pack together in close parallel alignment. C) The cis-unsaturated fatty acid chains have stronger London dispersion forces. D) All three factors (a)-(c) are important.