Any tips for chemistry practical? im taking my olevel practical tmr. anyone?

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

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

The three types is stress that act on earths rocks are compression, tension, and