Answer:
That could be two different dinosaurs, Sauroposeidon, or Titanosaurus.
Explanation:
Sauroposeidon was 18.5 meters tall, about 61 feet or titanosaurus, especially the species argentinosaurus, which was over 115 feet long.
Yes I think the answer is B concrete.
The Battle of Antietam
The Battle of Antietam, also called the Battle of Sharpsburg, occurred on September 17, 1862, at Antietam Creek near Sharpsburg, Maryland. It pitted Confederate General Robert E. Lee’s Army of Northern Virginia against Union General George McClellan’s Army of the Potomac and was the culmination of Lee’s attempt to invade the north. The battle’s outcome would be vital to shaping America’s future, and it remains the deadliest one-day battle in all of American military history.
The Europeans brought technologies, ideas, plants, and animals that were new to America and would transform people's lives: guns, iron tools, and weapons; Christianity and Roman law; sugarcane and wheat; horses and cattle. They also carried diseases against which the Indian peoples had no defenses.