The vector quantity that defines the distance and direction between two positions.

example: james was 20 meters north of his house.

type the word that match the definition here

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

An observation that requires measurement is called quantitative observable or qualitative

What is the independent variable in this investigation? mass volume sample number substance density