Which invention has done the most to predict weather and warn people of approaching storms?

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

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

What are the first three quantum numbers for the electrons located in subshell 2s?