Explanation:
The Second Wave, Third Wave, and Expansion of the Federal Government: 1830–1910. The next wave of immigrants began to arrive around 1830, when the U.S. population was nearly 12.9 million. Most immigrants in this second wave relied on credit or family remittances to pay for their passage to the United States.
The Biosphere is the one with plants and animals.
US officials determined that Osama Bin Laden was behind the terrorist attacks on September 11, 2001. In 1993, Osamba Bin Laden attemepted to bomb the World Trade Center, which was not successful. Osama Bin Laden was killed by US Navy Seals on May 1, 2011 at his home compound in Pakistan.
I would say that you got it :)
