HELP PLEASE what is probably being measured in t he diagram?

•speed
•engine temperature
•rate of tire wear
•gasoline mileage

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

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

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains