What is the chemical symbol for the element oxygen?
a) O
b) Ox
c) Om
d) On
Which gas is responsible for the green color of leaves in plants?
a) Oxygen
b) Carbon dioxide
c) Chlorophyll
d) Nitrogen
What is the process by which plants make their own food using sunlight?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Fermentation
Which of the following is a renewable source of energy?
a) Coal
b) Natural gas
c) Solar power
d) Petroleum
What is the SI unit of force?
a) Watts
b) Joules
c) Newton
d) Kilogram
Which of the following diseases is caused by a virus?
a) Tuberculosis
b) Malaria
c) Influenza
d) Cholera
What is the process of conversion of sugar into alcohol called?
a) Photosynthesis
b) Fermentation
c) Respiration
d) Oxidation
Which gas is responsible for the depletion of the ozone layer?
a) Carbon dioxide
b) Methane
c) Chlorofluorocarbons (CFCs)
d) Oxygen
What is the main function of the red blood cells in the human body?
a) Transporting oxygen
b) Fighting infections
c) Producing insulin
d) Digesting food
What is the formula for calculating the speed of an object?
a) Speed = Distance × Time
b) Speed = Time × Force
c) Speed = Mass × Velocity
d) Speed = Acceleration × Distance
Which of the following is a non-metal?
a) Iron
b) Sodium
c) Carbon
d) Calcium
What is the name of the process by which plants lose water vapor through small openings on their leaves?
a) Evaporation
b) Condensation
c) Transpiration
d) Precipitation
Which gas is responsible for the greenhouse effect and global warming?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
What is the basic unit of heredity in living organisms?
a) Cell
b) Gene
c) Chromosome
d) Protein
Which of the following is a vector quantity?
a) Mass
b) Speed
c) Distance
d) Velocity
Which continent is known as the “Land Down Under”?
a) Asia
b) Europe
c) Australia
d) Africa
What is the longest river in the world?
a) Mississippi River
b) Nile River
c) Amazon River
d) Yangtze River
What is the largest ocean on Earth?
a) Atlantic Ocean
b) Indian Ocean
c) Pacific Ocean
d) Arctic Ocean
Which mountain range is located in South America and is the longest in the world?
a) Andes Mountains
b) Rocky Mountains
c) Alps
d) Himalayas
Which imaginary line divides the Earth into the Northern and Southern Hemispheres?
a) Prime Meridian
b) Equator
c) Tropic of Cancer
d) Tropic of Capricorn
What is the term for a narrow strip of land that connects two larger landmasses?
a) Peninsula
b) Isthmus
c) Archipelago
d) Delta
Which country is known as the “Land of the Rising Sun”?
a) China
b) India
c) Japan
d) South Korea
What is the largest desert in the world?
a) Sahara Desert
b) Arabian Desert
c) Gobi Desert
d) Antarctica
Which country is known for its famous pyramids, including the Pyramids of Giza?
a) Greece
b) Egypt
c) Italy
d) Mexico
Which ocean is the deepest and contains the Mariana Trench, the deepest point on Earth’s surface?
a) Atlantic Ocean
b) Indian Ocean
c) Pacific Ocean
d) Arctic Ocean
Who was the first President of the United States?
a) Benjamin Franklin
b) Thomas Jefferson
c) George Washington
d) John Adams
Which ancient civilization is known for building the Great Wall of China?
a) Roman Empire
b) Egyptian Empire
c) Chinese Empire
d) Inca Empire
What event marked the beginning of World War I in 1914?
a) The sinking of the Titanic
b) The assassination of Archduke Franz Ferdinand
c) The signing of the Treaty of Versailles
d) The bombing of Hiroshima
Who wrote the “Declaration of Independence” for the United States in 1776?
a) Thomas Jefferson
b) George Washington
c) John Adams
d) Benjamin Franklin
Which famous voyage is associated with Christopher Columbus?
a) Voyage to the New World
b) Voyage to Asia
c) Voyage to Africa
d) Voyage to Antarctica
What was the period of cultural and artistic flourishing in Europe known as in the 14th to 17th centuries?
a) The Renaissance
b) The Enlightenment
c) The Industrial Revolution
d) The Middle Ages
Who was the leader of the Soviet Union during the Cuban Missile Crisis?
a) Vladimir Putin
b) Joseph Stalin
c) Leon Trotsky
d) Nikita Khrushchev
In which year did the United States drop atomic bombs on the Japanese cities of Hiroshima and Nagasaki?
a) 1945
b) 1950
c) 1939
d) 1960