Light rays travel from one medium into another and refract toward the boundary. What changes about the light to cause this refraction?
A Its Frequency increases
B Its speed increases
C Its Frequency decreases
D Its speed decreases

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Which food could be transported in a galvanized metal container?