Which of the following is not a unit of geologic time? А epoch B millennium era D age

[ou.01jthe greatest speed with which any physical object moves is 300,000 km/soundsec. which of the following has a speed of 300,000 km/sec? a.light in water b.light in vacuum c.sound in air. d. sound in water

Which feature of a map shows the relationship between a distance on a map and that distance on earth? key scale grid system compass rose

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)