During the 19th century, the United States ability to remain isolated from European affairs was largely due to its "geographic location," since it is bordered by the two largest oceans in the world.
Answer:
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<h2>the answer is letter B</h2>
Explanation:
<h3>thank you</h3>
Cyanobacteria, also known as "blue-green algae", are the unicellular organisms which are able to produce oxygen.
Approximately 540 years ago, the atmosphere was very poor on oxygen. Cyanobacteria are thought to be responsible for the oxidization of the atmosphere back then, in an event known as <em>"The Great Oxygenation Event"</em>. As a result, Earth's life forms suffered drastic changes in their composition, as they evolved from being <em>anaerobic</em> to becoming organisms <em>highly dependant</em> on oxygen. The oxygenation of the atmosphere would eventually provide the adequate environment in order for the <em>Cambrian Explosion</em>, or the first diversification of living organisms, to happen.
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Booker T. Washington rejected this confrontational approach, but by the time of his death in 1915 his Tuskegee vision had lost influence among many African Americans.
Explanation:
W.E.B. Du Bois and Booker T. Washington sharply disagreed on strategies for ... educator, reformer and the most influential black leader of his time ... Du Bois advocated political action and a civil rights agenda (he ... It is the problem of developing the best of this race.
