What is the equivalent weight of metal

Motivation cannot be developed with practice; a person either possesses it or they do not.

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

Define dew point. i am writing this part to be able to ask the question