About how long did the nazca exist in south america?

a. the nazca existed in south america for about 200 years.

b. the nazca existed in south america for about 1700 years.

c. the nazca existed in south america for about 2300 years.

d. the nazca existed in south america for about 800 years.

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design

"all the characteristics and experiences that define each of us as individuals" is the definition of

Adolescents can display egocentrism when they become about changes in their lives.