Its characteristics include the pointed arch, the ribbed
vault (which evolved from the joint vaulting of romanesque architecture) and
the flying buttress. The intersection of two to three barrel vaults produces a
rib vault or ribbed vault when they are edged with an armature of piped masonry
often carved in decorative patterns.
<span>The Panama Canal is an artificial 77 km waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a key conduit for international trade international maritime trade.
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Answer: <u><em>Jim Crow laws were state and local laws that enforced racial segregation in the Southern United States. All were enacted in the late 19th and early 20th centuries by white Democratic-dominated state legislatures after the Reconstruction period. The laws were enforced until 1965</em></u>
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Answer:
D
Explanation:
In 1970, in response to the welter of confusing, often ineffective environmental protection laws enacted by states and communities, President Richard Nixon created the EPA to fix national guidelines and to monitor and enforce them
