Question 1: Why is regular handwashing considered one of the most effective ways to prevent the spread of infections?
Question 2: If you are hit in the "funny bone", which nerve are you actually hitting?
Despite its name, the "funny bone" is not actually a bone. It's a nerve called the ulnar nerve that runs along the inside of your elbow. When you hit it, it causes a tingling sensation and sometimes pain that radiates down to your little finger.
Question 3: In George Orwell's novel "Nineteen Eighty-Four", what is the name of the fictional language spoken in the totalitarian state of Oceania?
In Orwell's dystopian novel, Newspeak is a controlled language created by the totalitarian state to limit freedom of thought and self-expression. The Party intends for Newspeak to eventually replace Oldspeak, or Standard English.
Question 4: Why are most plants green?
Most plants are green because they contain a pigment called chlorophyll. Chlorophyll is essential for photosynthesis, the process by which plants convert sunlight into chemical energy to fuel their growth. The green color of chlorophyll allows plants to absorb red and blue light from the sun while reflecting green light, giving them their characteristic green appearance.
Question 5: When was the current design of the flag of the United States adopted?
The current 50-star design of the U.S. flag was officially adopted in 1960 after Hawaii became the 50th state in 1959. The 50 stars represent the 50 states of the Union, while the 13 stripes represent the 13 original colonies.
Question 6: Which is the longest bone in the human body?
The femur, or thigh bone, is the longest and strongest bone in the human body. It connects the hip to the knee and plays a crucial role in bearing body weight and enabling motion of the leg.
Question 7: When did the construction of the Great Wall of China begin?
While the most well-known sections of the Great Wall were built during the Ming Dynasty (1368-1644 AD), the construction of the first sections began much earlier during the 7th Century BC by the state of Chu. Over subsequent centuries, particularly during the Qin Dynasty (221-206 BC), these sections were connected and fortified to protect against nomadic invasions.
Question 8: What type of chemical bond involves the sharing of electron pairs between atoms?
A covalent bond is a type of chemical bond that involves the sharing of electron pairs between atoms. The stable balance of attractive and repulsive forces between atoms when they share electrons is known as covalent bonding. Covalent bonds are common in most organic compounds.
Question 9: In what sport would you perform a Salchow?
The Salchow is a figure skating jump named after its inventor, Ulrich Salchow. It is a edge jump that takes off from the back inside edge of one foot and lands on the back outside edge of the opposite foot.
Question 10: When a number is squared and then added to itself, the result is 30. What is the number?
The equation can be written as x^2 + x = 30. This is a quadratic equation that can be solved using the quadratic formula or by factoring. Factoring gives (x + 6)(x - 5) = 0, so the solutions are x = -6 or x = 5. Since we're looking for the positive solution, the number is 5.
Regular handwashing with soap and water is effective in removing germs, including bacteria and viruses, from the hands, thus reducing the risk of spreading infections to yourself and others.