It is 4. because it says in the paragraph and I quote: "helium has a very low density. it is used in daily weather balloons to carry instruments that record, tempature, humidy, and pressure readings in the atmosphere.
I would say he would use words that make his tone sound sarcastic in the readers mind. Or after the character's line it would say...EXAMPLE: "Oh really" Alice said sarcastically
This is for a book I'm writing about two friends, and I need 1 thing young people need more credit for, 1 thing they need less credit for, 1 thing adults need more credit for, and 1 thing they need less credit for. If books get published, I will thank you for help!
