Submarines use sonar to locate bodies under water. It is similar to the echolocation that dolphins use to “see”. This technology is also used to create underwater topographic maps. What property of waves does sonar take advantage of? a refraction b reflection c interference d diffraction

i'm not sure what you are asking, but it also served as a debtors colony, was ran by the trustees for 20 years until becoming a royal colony, and people had restrictions such as no slaves, and only 50 acres of land per person/ hope this !

- jack watson

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.

answer; /// you data to develop general ideas or theories;

answer; positive reinforcement;