Why is sustainable development concerned with the needs of future generations?

How has the immigration of the 1990s affected the social and economic life of the united states?

Why was frederick douglass encouraged by the dred scott decision?

Which beliefs and principles in the declaration of independence and the u.s. constitution create a national identity? a.) belief in god, allegiance to popular sovereignty, and states’ rights. b.) free enterprise system, free trade system, and separation of powers. c.) individual freedom, political equality, and unalienable rights. d.) powerful executive branch, judicial review, and bicameral legislature.