Scientists have grown progressively more worn the potential for climate change caused by increasing at mospheric carbon dioxide levels. the world burns the fossil fuel equivalent of approximately 9.0 x 1012 kg of petroleum per year. assume that all of this fossil fuel is in the form of octane (c hs) and calculate how much co2 in kilograms is produced by world fossil fuel combustion per year. (hint: begin by writing a balanced equation for the combustion of octane.) if the atmosphere currently contains approximately 3.0 x 1015 kg of co2, how long will it take for the world's fossil fuel combustion to double the amount of atmospheric carbon dioxide?

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge