List and define 3 different systems of stratification in society

In her article "why should i vote? " stephanie goggin crafts a well-organized and coherent argument. she states that every person of voting age who is registered should vote. she also argues that if you are not registered to vote, you should be. in conclusion, goggin's argument is laid out in a thoughtful and thorough way that is convincing to readers. which element is missing from this evaluation?

Which food would provide you with the most calcium?

In a cooking context,which of the following materials is the best heat conducter?