Answer:
The 1862 Homestead Act accelerated settlement of U.S. western territory by allowing any American, including freed slaves, to put in a claim for up to 160 free acres of federal land.
Explanation:
The submarine became a potentially viable weapon with the development of the Whitehead torpedo, designed in 1866 by British engineer Robert Whitehead, the first practical self-propelled or 'locomotive' torpedo.[20] The spar torpedo that had been developed earlier by the Confederate States Navy was considered to be impracticable, as it was believed to have sunk both its intended target, and probably H. L. Hunley, the submarine that deployed it. In 1878, John Philip Holland demonstrated the Holland I prototype.
Discussions between the English clergyman and inventor George Garrett and the Swedish industrialist Thorsten Nordenfelt led to the first practical steam-powered submarines, armed with torpedoes and ready for military use. The first was Nordenfelt I, a 56-tonne, 19.5-metre (64 ft) vessel similar to Garrett's ill-fated Resurgam (1879), with a range of 240 kilometres (130 nmi; 150 mi), armed with a single torpedo, in 1885.
A reliable means of propulsion for the submerged vessel was only made possible in the 1880s with the advent of the necessary electric battery technology. The first electrically powered boats were built by Isaac Peral y Caballero in Spain (who built Peral), Dupuy de Lôme (who built Gymnote) and Gustave Zédé (who built Sirène) in France, and James Franklin Waddington (who built Porpoise) in England.[21] Peral's design featured torpedoes and other systems that later became standard in submarines.[22][23]
1. "The study of movement of people, goods, and ideas from one place to another."
ex: "Movement also deals with how and why people travel from one place to another. Some people travel for career, others to be close to family, and some move to escape war or religious persecution. One example of movement was pioneers heading West on the Oregon Trail in hopes of finding cheap, fertile land in Oregon."
2. "How humans and the environment affect each other."
ex: "Geographers study the way humans interact positively and negatively with their environments. They also study the lasting affects these interactions may have on a place. Some examples of this geography theme are damming a river, polluting the air, building highways or railroads, and even watering lawns and gardens. Human behavior such as planting trees is a positive interaction with the environment where creating landfills is a negative interaction."
The Cabinet includes the Vice President and the heads of 15 executive departments — the Secretaries of Agriculture, Commerce, Defense, Education, Energy, Health and Human Services, Homeland Security, Housing and Urban Development, Interior, Labor, State, Transportation, Treasury, and Veterans Affairs, as well as the Attorney General.
In order of succession to the Presidency:
Vice President of the United States
Joseph R. Biden
Department of State
Secretary John Kerry
state.gov
Department of the Treasury
Secretary Jack Lew
treasury.gov
Department of Defense
Secretary Ashton Carter
defense.gov
Department of Justice
Attorney General Loretta E. Lynch
usdoj.gov
Department of the Interior
Secretary Sally Jewell
doi.gov
Department of Agriculture
Secretary Thomas J. Vilsack
usda.gov
Department of Commerce
Secretary Penny Pritzker
commerce.gov
Department of Labor
Secretary Thomas E. Perez
dol.gov
Department of Health and Human Services
Secretary Sylvia Mathews Burwell
hhs.gov
Department of Housing and Urban Development
Secretary Julián Castro
hud.gov
Department of Transportation
Secretary Anthony Foxx
dot.gov
Department of Energy
Secretary Ernest Moniz
energy.gov
Department of Education
Secretary John King
ed.gov
Department of Veterans Affairs
Secretary Robert McDonald
va.gov
Department of Homeland Security
Secretary Jeh Johnson
dhs.gov
The following positions have the status of Cabinet-rank:
White House Chief of Staff
Denis McDonough
Environmental Protection Agency
Administrator Gina McCarthy
epa.gov
Office of Management & Budget
Director Shaun L.S. Donovan
whitehouse.gov/omb
United States Trade Representative
Ambassador Michael Froman
ustr.gov
United States Mission to the United Nations
Ambassador Samantha Power
usun.state.gov
Council of Economic Advisers
Chairman Jason Furman
whitehouse.gov/administration/eop/cea
Small Business Administration
Administrator Maria Contreras-Sweet
sba.gov
"<span>D. A German army division surrenders at Stalingrad" is the proper answer. This was a decisive battle that helped turn the tides of the war by stopping the German offensive in the East. </span>