Answer:
They used analytics, social media and big data.
Explanation:
During the elections in 2008, Obama understood the importance and impact that the internet and technology can have on the results and they used social media to reach as many people as they can, informing them and trying to get their votes. They also used analytics science and big data to understand people's behaviours and needs, enabling them to direct their advertisements and movements online and on social media according to that.
I hope this answer helps.
Answer:
Sponges were among the earliest animals. While chemical compounds from sponges are preserved in rocks as old as 700 million years, molecular evidence points to sponges developing even earlier.
The right answer is the increase of agricultural output, the Ming dinasty ruled China for almost 300 years (1368-1644) and enjoyed stability and prosperity, reforming the government and making more efficient use of the land, one of the things that made this increase possible was taxes, what excludes the third option. As for the first option, Ming government persecuted to some extent Christian and Muslims communities, and for the fourth, Tokugawa was a dinastic government in Japan, not China.
<span>The Spanish-American war gave the United States for the first time an overseas Empire. Unable to pay the indemnity for the war, Spain withdrew from Cuba and gave the Philippines to the United States to pay for the war. </span>
