Why could you see the Great Wall of China from space? A. Because it is brown, blue and white.
B. Because it is a stone fortification.
C. Because it is 1,500 miles long.
D. Because it was built entirely by hand labor.

I want to say your answer is going to be C. Because it it 1,500 miles long.

Sorry if I wasn't able to help!

Explanation:

answer: you could try asking a family member maybe?

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.