FRQ: Please complete all sections. Keep your answers distinc…

FRQ: Please complete all sections. Keep your answers distinctly separate by paragraph and complete each response in full sentences. (8 pts) Biogeochemical cycles describe the movement of certain elements (typically bound with other elements in compounds) through Earth’s atmosphere, hydrosphere, biosphere, and lithosphere. These elements and their compounds are necessary components of all life, and because they cycle, they can be used repeatedly by new generations of organisms. Each biogeochemical cycle has different pathways with various reservoirs (sources and sinks) where elements may reside for days or millions of years. (a) The atmosphere is one important carbon reservoir.     (i) Describe a biological process by which carbon is removed from the atmosphere and converted to organic molecules.     (ii) Describe a biological process by which carbon is converted from organic molecules to a gas and returned to the atmosphere.  (b) Oceans and terrestrial systems are also important carbon reservoirs.     (i) Explain how atmospheric carbon is incorporated into an oceanic sink.     (ii) Identify one terrestrial sink, other than fossil fuels, that stores carbon for thousands to millions of years.  (c) Describe a human activity that increases the concentration of carbon in the atmosphere.  (d) Identify and describe an environmental problem that results from elevated atmospheric carbon concentrations.

On any given Friday night, a UA student can be found either…

On any given Friday night, a UA student can be found either eating popcorn, going to a movie, on a date, or any combination of these activities with probability according to the following Venn diagram:   What is the probability that a student is at a movie given that they are on a date?

Dr. Kwinn loves ice cream (duh, ya think?) He checks the fre…

Dr. Kwinn loves ice cream (duh, ya think?) He checks the freezer, and they have Chocolate, Moose Tracks, Mint Moose Tracks, Butter Pecan and Strawberry Cheesecake. His wife only lets him have three scoops (disregard what he gets after she goes to bed). How many different variations of the ice cream can Dr. Kwinn get in his giant ice cream bowl tonight?