Could anybody look over my AP US Government Exam and correct me on anything I might have gotten wrong

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor

Gi gi di g i d i d i i f o u n d y o u

What can you conclude if data from a study agree with the result predicted by the hypothesis? a. the data must contain systematic errors. b. the data show that the hypothesis could be true. c. the data are unrelated to the hypothesis. d. the data prove that the hypothesis is false.