Which of these indicated that the tang dynasty had lost the mandate of heaven?
military defeats, rebellions, and economic troubles
earthquakes, economic troubles, and isolationism
rebellions, mass migrations, and military dictators
crop failures, reduced exports, and weakened currency

What directive in source a might have been at the root of the action described in source b?

Javier is considering two options for college. option a: complete the first two years of schooling at a community college and then transfer to a university. option b: complete all four years of schooling at the university. community college financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $3,000 $1,000 room & board $1,000 university financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $10,000 $15,000 room & board work-study $11,500 $4,000 which statement about the cost of the options is true? option b will save him $1,000. option b will save him $2,000. option a will save him $14,000. option a will save him $17,500.

An effect of the steamboat's popularity was that fewer people traveled by rail. o steam locomotives became less popular. people began to build canals in the united states and europe. o more people began to travel between the united states and europe.