In order for a person to be classified as having major depressive disorder, he or she must experience a depressive episode that lasts at least
a) one week.
b) two weeks.
c) one month.
d) two months.

In the base year in a small island macroeconomy, nominal gdp was $400m. in a later year when the general level of all prices was twice as high, nominal gdp reached $1000m. between the base year and the later year: ( there can be multiple answers) -real gdp declined -there was real gdp growth by more than 100% - inflation occurred - there was real gdp growth but by less than 100%

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

Physical needs include: a. the need for sleep b. the need to feel safe c. the need to feel secure d. all of the above