Steel ball weight four kg from a height of 60 m will it fall more rapidly through water at 25 degrees Fahrenheit or water at 45 degrees Fahrenheit. Or will it make no difference?

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 is i fracture in the crust called when land move up, down or sideways

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.