How would you like to our world, how could you make this world a better place? (4 sentences)

Which tone best fits a business letter

Assp - why is it important to participate in a global economy? write a paragraph of 2 to 3 sentences that explains your answer?

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.