English
A)
Newton
B)
Einstein
C)
Galileo
D)
Kepler
Isaac Newton described three laws of motion in *Principia Mathematica* (1687), forming the basis of classical mechanics.
English
A)
Treaty of Utrecht
B)
Treaty of Westphalia
C)
Treaty of Versailles
D)
Treaty of Tordesillas
The Peace of Westphalia (1648) concluded the Thirty Years' War and established principles of sovereign states and non-intervention.
English
A)
Photosynthesis
B)
Nitrogen fixation
C)
Respiration
D)
Denitrification
Nitrogen fixation—by bacteria or lightning—converts atmospheric N₂ into biologically usable ammonia or nitrates.
English
A)
Vitamin A
B)
Vitamin C
C)
Vitamin D
D)
Vitamin K
Ultraviolet B radiation converts skin precursors into vitamin D, essential for calcium metabolism and bone health.
English
A)
Galileo
B)
Newton
C)
Kepler
D)
Einstein
Isaac Newton formulated universal gravitation, showing that bodies attract with a force proportional to mass and inversely to distance squared.
English
A)
Frank Lloyd Wright
B)
Frank Gehry
C)
Zaha Hadid
D)
Renzo Piano
Frank Gehry designed the Guggenheim Bilbao (opened 1997), noted for its curving titanium forms and revitalization of the city.
English
A)
Jorge Luis Borges
B)
Gabriel García Márquez
C)
Pablo Neruda
D)
Mario Vargas Llosa
Gabriel García Márquez wrote "One Hundred Years of Solitude", a landmark of magical realism and Latin American literature.
English
A)
Colorado
B)
Rio Grande
C)
Mississippi
D)
Columbia
The Rio Grande (Río Bravo) forms a long stretch of the US–Mexico border, serving as a geographic and political boundary.
English
A)
Tunisia
B)
Libya
C)
Morocco
D)
Algeria
Ancient Carthage was located in present-day Tunisia and became a rival of Rome in the Punic Wars. This is a well-documented historical or scientific.
English
A)
Russia
B)
USA
C)
France
D)
China
Due to overseas territories, France spans the most time zones of any country when its territories are included across the globe.
Loading more...