What is one criticism mentioned in the text regarding piaget's explanation of object permanence? infants' mistakes were due to

Which factors influenced the growth of christianity in east africa? select all that apply. a. mansa munsa’s pilgrimage to mecca b. trade with greeks and romans c. influence of a captured syrian servant d. invasion of mali’s christian military e. caravans of christians traveling through the trans-sahara trade network

Which of the following describes classical civilizations? they grew slowly and had a very short lifespan. they were unable to carry out long-distance trade. they made lasting impressions in art and architecture.

About 300 billion dollars in taxes is lost in the united states alone due to an underground economy, which involves paying individuals cash rather than having them on the official payroll. a. true b. false