When are presidential candidates officially chosen

Plz 98 points so i need 5 paragraphs of a fake article for the threat of pollution in asia i have examples look at those first and i would enjoy if you had word or grammerly and did it on there you very much

What is the correct order (starting from the surface) of warts layers

The availability and cost of blank is a major component of a region's overall cost of living. marking brainliest answer btw only one answer -health care -transportation -housing -education its 20 pts