Forming the Iowa-Illinois border, this river flows south past the cities of Tunica, Vicksburg, and Natchez.

one river flowing into the Mississippi is this one on the Nebraska-Iowa border. Due to its silt, it is nicknamed the "Big Muddy"

Medieval trade across this desert used camel caravans to exchange gold for salt

The ratio of a circle's circumference to its diameter is symbolized by this Greek letter

The ratio of a line's rise over its run is this quantity

This man accepted the Confederate surrender at Appomattox and won the presidential elections of 1868 and 1872

Shot at Chancellorsville, this man earned the nickname "Stonewall"  after Barnard bee saw him standing at Manassas.

This busy semi-aquatic creature of genus Castor cuts down trees to make dams and lodges

The acorn-loving squirrel has types including Eastern gray, red or flying

Viscachas and these rodents make up a family in South America, some of which are prized for their fur

This son of Zeus and Hera was the Greek god of war

This Olymian goddess of wisdom was fully grown when she sprang forth from Zeus' head

Leto was the mother of this sun god and his twin sister Artemis

He was a successful peanut farmer when he saw a UFO in Leary, Georgia, in 1969. Seven years later he won the U.S. presidential election

The SI unit of power is named for which Scottish engineer who improved on the Newcomen steam engine?

What six letter term refers generally to machines that convert mechanical energy into direct current. Cars are powered by the "combustion" type

The losing candidate was this Tennessee Senator who shared the 2007 Nobel Peace Prize for his efforts related to climate change

At soccer's 2010 World Cup Lodeiro   earned one of these cards in which he was ejected from a game against France

By winning the 2010 Masters, Phil Mickeslson earned his third jacket of this color awarded by the Augusta National Golf club.

During each stage or the Tour de France bicycle race, the current overall leader in the general classification wears a jersey of this color.

a building that houses tombs

This botanical structure in Babylon was constructed by Nebuchadnezzar II for his wife, who missed the flora of her homeland.

What are these geologic events whose intensities have been measured on the Richter and Mercalli scales

Earthquakes tend to happen at these boundaries between tectonic plates that can be classified as dip- and -strike slip. The San Andreas one runs through the western U.S.

This is the point on the Earth's surface directly above the focus, or the underground place where an earthquake originates. It is often the point of greatest damage.

Some recent holders of this office include John XXIII and Paul VI 

Popes are chosen by a college of these officials who traditionally wear red

This "cape" in Cape Town is this one, renamed from the "Cape of Storms" when the Portuguese explorers rounded it en route to India

South Africa's  most populous city is not Cape town, but this city _______

In German, these include "ich" (ick) "wir" (Veer) and "sie" (zee
in English some of these words are "we and "they"

Seventh Day Adventists celebrate the sabbath on this day rather than Sunday

What day of the week is celebrated before the beginning of Lent and ends the Mardi Gras