Which mountains are older- the appalachians the rockies or the sierra nevada?

Asap will mark geography final plz ! what are the benefits of international aid? (give me the right evidence )

Political boundaries are determined by the political party in control at the time. true or false

Select the correct answer.look at this nineteenth-century illustration of london. which explanation best relates this illustration to changes in britain in the 1800s? a.factory workers in cities lost their livelihood because of the lack of housingb.industrialization narrowed the inccome gap between landowners and workers.c.the migration of workers from rural to urban areas resulted in overcrowded citiesd.the spread of railways allowed farmers to sell produce far from where it was grown.