Samples a and b were selected from the same population.

To safely control the traffic flow and protect workers near public roadways and moving construction equipment use you could use

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

When creating visuals, a journalist should