Apsychologist hypothesizes that people earning a salary of more than $500,000 are actually less happy than people earning $40,000–$60,000 per year. what are six variables the psychologist might need to consider when testing her hypothesis?

answer; /// i believe the correct answer is (wine) ; /// good luck

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.

answer; with few regulations protected the prices of crops which made farmers leave their farms and migrate to the big cities to work in factories;

answereruption of molten material; magnetic stripes in the rock of the ocean floor; the age of the rocks themselves;