A land bridge called al Lisan separates this "corpselike" body of water into a southern basin & a northern basin
the Dead Sea
By any measure this object is 36 inches long
yardstick
This number is represented by the Roman numeral X
10
Oxford says this preposition is the 7th-most common word in English; it's in this clue twice
in
Aptly describing what's on it, this 3-word nickname is used for the U.S. national flag
"Stars and Stripes"
This ocean's greatest depth, about 18,000 feet, lies at around 82 degrees north latitude
the Arctic Ocean
This symbol seen below

copyright
In a letter or message, an X symbolizes one of these
a kiss
Because of metal shortages, from 1943 to 1945 these famous award statuettes were made of plaster
Oscars
All 4 verses of "The Star-Spangled Banner" end with these 4 words
home of the brave
[DD]
This second-longest African river takes its name from a kingdom that once existed near its mouth
the Congo River
This word is a synonym for versus
against
This male first name starting with "X" is also a Jesuit university in Cincinnati
Xavier
The traditional "Big 3" of U.S. automakers are Chrysler, General Motors & this one
Ford
Dating back to the War of 1812, this symbol is usually depicted as a bearded man wearing red, white & blue
Uncle Sam
The Gulf of Mannar between India & this island nation is noted for its pearl banks & the sacred chank, a gastropod mollusk
Sri Lanka
It's a belief, not based in reason, that something bad will happen if you perform a particular action... or if you don't
superstition
In the 1637 work "Geometrie" he introduced the use of X, Y & Z as symbols of unknown quantities
Descartes
This state's richest man is French fry tycoon Scott Simplot
Idaho
Following the death of George Washington a few days before, it was sounded on December 18, 1799
the Liberty Bell
The Strait of Tiquina connects the northern & southern parts of this lake in the Andes
Lake Titicaca
One definition is a stitched-together type of publication having between 5 & 48 pages
a pamphlet
X Division at this New Mexico national lab is the USA's center for the physics of nuclear weapons
Los Alamos
[DD]
This alloy of copper & tin gave its name to a cultural "Age"
bronze
Of the genus Haliaeetus, it represents strength & courage
the bald eagle