Is the following underlined group of words an adverb clause or an adverb phrase? "I usually go to my grandmother's house on my birthday."

According to the text, to become economically successful (self-sufficient), the louisiana superdome, before finding tenants, had to earn between $26,000 and $35,000 in daily rental income. this is evidence that

Read the excerpt from the dark game: true spy stories from invisible ink to cia moles. yet, by the time robert e. lee surrendered to ulysses grant at appomattox, virginia, some four years later, about 620,000 soldiers had died on the battlefields, more than american battle deaths in all other wars from the revolution through the vietnam war. what is the author’s primary purpose for including this detail? to inform readers about the differences between three military conflicts to persuade readers of the seriousness of the american civil war to entertain readers with tales from behind the lines of battle to encourage readers to visit battlegrounds in appomattox, virginia

What do you call a person who is mean in school?