Which of the following best completes this excerpt? a)equal pay b)own property c)a public education d)vote

Water and soil are brought into the indus river valley as a result of a. high winds b. annual floods c. long droughts d. seasonal tornadoes

On their way home, what do claudia and jamie decide to do? a. visit the museum every week with mrs. frankweiler and make more discoveries about the exhibits b. tell saxonberg about the mystery behind the angel statue and give the sketch to the museum c. introduce mrs. frankweiler to their parents and tell her that they have adopted her as their grandmother d. visit mrs. frankweiler as often as they can and adopt her as their grandmother

The idea that desirable traits can be bred into human beings and undesirable ones can be bred out is known as: