What types of elements are involved in ionic bond and why

Type the letter that represents the correct location for each particle type below.

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

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?