What is the difference between Social Science Research and Social Work Research

Why do governments supply public goods and services instead of selling them to those people who use them

This is a crossword assignment for psychology 8 letter word a benefit of observational research is that it often generates

The persian wars started when emperor darius i began an invasion of greece. what caused darius to decide to attack greece? a. greek pirates had raided persia's merchant ships and coastal towns. b. greek armies had attacked and taken over land that belonged to persia. c. greek city-states had supported rebellions in the persian empire. d. greek leaders had declared independence from the persian empire.