4-Sobre o pioneirismo português na expansão marítima, marque as alternativas corretas: (A) A expansão marítima portuguesa teve início no século XI. (B) A conquista da cidade de Ceuta é um marco do início das conquistas portuguesas na África. (C) D. Henrique agregou na cidade de Sagres diversos especialistas em navegação e participou de diversas empreitadas marítimas. (D) Portugal contestou a Bula Inter Coetera, pois temia que os espanhóis ficassem com o controle do litoral africano. Devido a isso foi firmado um novo tratado, o de Tordesilhas. (E) Após o Achamento do Brasil o interesse por colonizar a região foi imediato

union blockade

explanation:

the union blockade in the american civil war was a naval strategy by the united states to prevent the confederacy from trading.

the blockade was proclaimed by president abraham lincoln in april 1861, and required the monitoring of 3,500 miles (5,600 km) of atlantic and gulf coastline, including 12 major ports, notably new orleans and mobile. those blockade runners fast enough to evade the union navy could only carry a small fraction of the supplies needed. they were operated largely by british citizens, making use of neutral ports such as havana, nassau and bermuda. the union commissioned around 500 ships, which destroyed or captured about 1,500 blockade runners over the course of the war.

answer: i looked it up

explanation: in 1955 in montgomery, alabama, a girl refused to give up her seat on a public bus. the girl was black, and the passenger looking to take her seat was white. this is a familiar tale, but it's not about rosa parks. the girl in the story is a 15-year-old high school student named claudette colvin, and this act of defiance occurred nine months before rosa parks did the same thing. colvin was arrested, and her case is what led to the u.s. supreme court's order for the desegregation of alabama's bus system. so, why don't we know colvin's name? "later i had a child born out of wedlock; i became pregnant when i was 16," colvin says. "and i didn't fit the image either, of, you know, someone they would want to show off.

on my last question

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.