Why can't antibiotics be used on viruses?

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

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.