Which safe practice is part of using aseptic technique

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What was bohr’s contribution to the planetary model

Complete each row of the table below by filling in the missing prefix or missing exponent.