Explain how the written word helped the environmental movement to gain momentum during the 1960s and 1970s

The correct answer to this open question is the following.

The written word helped the environmental movement to gain momentum during the 1960s and 1970s in that it helped the environmental movement to exert more pressure on the United States Congress to pass legislation that protected the environment. The written word spread the motives of the environmentalists so more people could be informed about their objectives and could support them. Congress passed laws aimed to reduce air and water pollution.

post the grid otherwise i cant .

also it sounds like a math question not history.

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.