Who invented the light bulb in 1879?
Thomas Edison
Vincent van Gogh
Alexander Graham Bell
What is the smallest country in the world?
Vatican City
East Timor
Maldives
The words “the,” “an,” and “a,” are known as what in English grammar?
adjectives
auxiliaries
articles
What is the longest river in the world?
The Amazone
The Nile
The Mekong
What is the largest country in the world?
Russia
China
India
What is the southernmost continent called?
Antarctica
the North Pole
Africa
What is the largest organ in the human body?
intestine
skin
lungs
What is the closest planet to the Sun?
Mercury
Venus
Neptune
What species can live on both water and land?
fish
birds
amphibians
How many grams are there in a thousand kilograms?
one billion
one million
one hundred
What is the minimum age for a U.S. President?
30 years or older
40 years or older
35 years or older
What number is the Roman numeral XVI?
16
15
14
Which language is mostly spoken in South America?
Spanish
English
French
What country invented the fireworks in the 7th century?
Korea
China
Japan
What ancient civilization built the Machu Picchu complex in Peru?
The Incas
The Egyptian
The Thai
