Answer:
The U.S. Supreme Court case Marbury v. Madison (1803) established the principle of judicial review—the power of the federal courts to declare legislative and executive acts unconstitutional. ... Marbury sued the new secretary of state, James Madison, in order to obtain his commission.William Marbury had been appointed Justice of the Peace in the District of Columbia, but his commission was not delivered. Marbury petitioned the Supreme Court to compel the new Secretary of State, James Madison, to deliver the documents.
Explanation:
The answer is "B" Powers of the branches of federal government
The African trade in gold and salt caused the Ghana Empire to rise to prominence, and the disruption of that trade led to its decline. During its time, Ghana was one of the richest polities in Africa.Though Ghana was not rich in natural resources itself, it was located along an important trade route between gold- and ivory-producing areas in the south and salt miners in the Sahara desert to the north. As a result of this strategically important location, Ghana became a wealthy entrepot.
Though the exact origins of Ghana are clothed in mystery, tradition places the empire's origins in the fourth century AD. By the ninth century, the area had become affluent according to accounts by Muslim traders who began to visit the area. These traders from the north continued to develop the trade, linking its gold resources with the vital markets in the Mediterranean region, and the empire grew larger by incorporating its neighbors.
The decline of the empire started in the 11th century, when the Almoravids, a militant confederation of Muslims, began to attack the empire and even conquered it for a time. Though their grip on power did not last long, the chaos they brought to the region destabilized trade, hurting the empire's sources of income. Decline ensued. The remnants of Ghana were incorporated into the Mali Empire in 1240.
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Answer:
agriculture helped the human race because it let people take on other jobs and people were able to grow more crops
Answer: The most common tones produced by sirens in the United States are "alert" (Steady) and "attack" (wail). ... Attack Warning – A 3 to 5 minute wavering tone on sirens or a series of short blasts on horns or other devices. The Attack Warning signal means detection of an actual attack or accidental missile launch. The sirens are usually for the people surrounding the area to let them know that they need to evacuate immediately.
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