Biology
Which organ of the human body gets oxygen directly from the air and not from the blood?
The cornea
What is exactly the pH value of distilled water?
7
How many dots appear on a pair of dice?
42
Name the two astronauts who walked on the moon in July 1969.
Neil Armstrong and Buzz Aldrin.
How many hearts does an octopus have?
Three
What is the process of adding yeast to dough to create carbon dioxide bubbles?
Fermentation
What is the chemical element with the symbol Fe?
Iron
What is acrophobia a fear of?
Heigths
In what year did World War II end?
1945
What animal has the longest tongue?
Giraffe
Which gas do plants release during photosynthesis?
Carbon dioxide
How many elements are in the periodic table?
118
How many stars are on the Chinese flag?
5
Which planet has the most moons?
Saturn
What is a group of crows called?
A murder
DNA stands for deoxyribonucleic acid. True or false?
True
What is the most common element (by mass) forming the planet Earth?
Iron
What is a word, phrase, number, or other sequence of characters that reads the same backward as forward?
Palindrome
Which ancient Chinese dynasty is often considered the "golden age" of Chinese civilization?
Han dynasty
What animal has the largest brain relative to body size?
Dolphin
Including wisdom teeth, how many permanent teeth does the average adult human have?
32
Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
Isotope
What scientific theory proposed that Earth revolves around the sun?
Heliocentrism
Who was the last monarch of the Tudor dynasty?
Elizabeth I
How many bones does a shark have?