Thermohaline circulation is driven by which of the following?
a. differences in temperature and salinity that create density variations in ocean water
b. differences in density and salinity that create temperature variations in ocean water
c. differences in salinity that create temperature and density variations in ocean water
d. differences in density that create temperature and salinity variations in ocean water

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

7. see worksheet 1 for values of variables x1, x2 and x3 and answer the following questions: a. for each variable find the mean, median, coefficient of skewness, range and population standard deviation. b. compared to variable x1, how are the mean and median affected by extreme values (outliers) seen in x2 and x3. c. is the median or mean the better measure of location for x2 and x3? explain. d. explain the differences in the magnitudes of the skewness coefficients for the three variables. e. what is the relationship between the range and standard deviation looking across the three variables?