The answer is 1, EducateAmerica.gov. Websites with ".gov" at the end are managed by government officials/ are supported by the government, and would often provide you with a lot of data on the topic that you are researching.
The Upturned face tell a story of how two soldiers humorously argue about how to bury their comrade in the middle of the battle.
So, the tone of upturned face would be : somewhat humorous
The Mood would be : Uneasy
hope this helps
Contrasting is the answer
The purpose of writing an informal letter is totally different from the purpose of a formal letter.
The content of the two styles is also different.
The style of greeting and addressing the letter is different.
There is a set format for formal letters while there is no set structure for an informal letter.
Slang and colloquial words can be used in an informal letter but not in a formal letter.
