Please help i have no idea what this answer is

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

Find the number of moles of argon in 364g of argon.

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.