A horizontal black line intersected from above by a blue line at an oblique angle. The blue line continues below the black line at a new angle. Which wave interaction results in a change in the direction of the wave as it passes through one medium to another medium?

absorption
diffraction
reflection
refraction

In a repredentive democracy: a.) people come together in large meetings to vote on public policy b.) the people govern themselves c.) political power is held by a small group of people d.) people elect officials to run the government for them

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

As heat and pressure increase, ductile deformation becomes less likely becomes more likely is replaced by elastic deformation stops occurring