The answer is B- beta waves I believe
Answer:trading with outside partners to bring in surplus food.
building projects ensured their power would not be challenged.
the building of a postal system to increase the economy.
irrigation systems made trade possible because of surplus crops.
Explanation:
Its called a caste. Caste is a lifelong social group into which an individual is born
--both cost prohibitions on data collection and the infeasibility of collecting data on the entire population.
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Answer:
Socioeconomic status (SES) encompasses not just income but also ... which may place them at an economic disadvantage and potentially at lower ... By 2030, it is projected that 25 percent of older persons will be from ethnic minority groups.
