Question 1: Why does Swiss cheese have holes in it?
Question 2: What is the study of the motion of fluids called?
Fluid dynamics is a branch of physics that studies the motion of fluids, including liquids and gases. It encompasses concepts such as flow velocity, pressure, density, and temperature, and has applications in fields like aerodynamics, hydraulics, and meteorology.
Question 3: What is the world's largest island?
Greenland, an autonomous territory within the Kingdom of Denmark, is the world's largest island, covering an area of 2,166,086 square kilometers (836,330 square miles). Despite its name, approximately 79% of Greenland's surface is covered by an ice sheet.
Question 4: Which famous cartoon character lives in a pineapple under the sea?
SpongeBob SquarePants is an animated character who lives in a pineapple house in the underwater city of Bikini Bottom. He works as a fry cook at the Krusty Krab restaurant and is known for his optimistic and cheerful personality.
Question 5: In the periodic table, which element has the chemical symbol Hg?
The element mercury, represented by the chemical symbol Hg, is a heavy, silvery-white liquid metal. The symbol "Hg" comes from the Greek word "hydrargyrum," meaning "water-silver," referring to its liquid state at room temperature.
Question 6: When did the Berlin Wall fall, marking a symbolic end to the Cold War?
The fall of the Berlin Wall on November 9, 1989 was a pivotal event that symbolized the end of the Cold War and the collapse of communism in Eastern Europe. It led to the reunification of East and West Germany.
Question 7: Where was the Mona Lisa painted?
The Mona Lisa, also known as La Gioconda, is a half-length portrait painting by Italian artist Leonardo da Vinci. It is considered an archetypal masterpiece of the Italian Renaissance, and has been described as "the best known, the most visited, the most written about, the most sung about, the most parodied work of art in the world."
Question 8: Which of the following languages has the most native speakers worldwide?
Mandarin Chinese, spoken mainly in mainland China, Taiwan, and Singapore, has around 920 million native speakers, making it the language with the most native speakers worldwide. However, English is more widely spoken when considering both native and non-native speakers.
Question 9: When was the Mona Lisa painting by Leonardo da Vinci completed?
The Mona Lisa, also known as La Gioconda, is a famous oil painting by Leonardo da Vinci. It is believed to have been painted between 1503 and 1516, with da Vinci working on it off and on during those years. The painting is renowned for the enigmatic smile of the subject, believed to be Lisa Gherardini, the wife of a wealthy Florentine merchant.
Question 10: Which fruit is used to make prunes?
Prunes are dried plums. They are known for their laxative effect and are often used in cooking and baking to add sweetness and moisture to dishes.
The holes in Swiss cheese, also known as "eyes," are caused by bacteria called Propionibacter shermani. During the cheese fermentation process, these bacteria consume the lactic acid in the curd and release carbon dioxide gas, which forms bubbles that create the distinctive holes in the cheese.