Final answer:
In 2010, it is estimated that about 1 million Seventh-Day Adventists lived in the U.S., representing a smaller portion of the global population which exceeds 7 billion.
Step-by-step explanation:
In 2010, the estimated number of Seventh-Day Adventists living in the U.S. was approximately 1 million. The Seventh-Day Adventist Church is a Protestant Christian denomination known for its observance of Saturday, the seventh day of the week, as the Sabbath, and its emphasis on the imminent Second Coming (advent) of Jesus Christ. While there are over 7 billion people globally, with many identifying as religious, the number of Seventh-Day Adventists in the U.S. at that time was relatively smaller when compared to the total population.