What natural disaster did the tennessee valley authority prevent ?

Lia doesn't like her personality psychology class because the instructor uses unannounced pop exams to test the students as a result, lila never knows when she will be tested instructor is testing her on a o foxed-ratio schedule o fxed-interval variable-ratio variable-interval

The provisions of subpart d, of the hhs regulations, additional protections for children involved as subjects in research apply to: all research involving childrenall research that is > minimal riskall research funded by any federal agencyall research funded by hhs

Eter lives in a beautiful region. peter and other residents of his region use water from the river that flows through their region. recently, mark industries decided to set up their chemical plant near that river. peter realized that the waste from the chemical plant would pollute the river. he decided to seek a legal ordinance that would restrict the use of land near that river for specific use only. which type of zoning will peter and his region?