M Researchers Paul Ekman and Wallace Friesen conducted facial recognition experiments to determine which of the
following?
A. if cultures differ in social gestures used to represent emotion
B. if cultures differ in words used to label emotions
C. if emotional expressions were recognizable across cultures
D. if cultures had different display rules for emotion

the movement of aircraft through clouds can even cause lightning strikes. a single lightning event is a "flash", which is a complex, multi-stage explosively ejected.

explanation:

and the person below goggled it.

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frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".