When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?

Smog is the term used to describe the combination of fog and smoke

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

What material does not melt at any temperature