This woman is best known for giving Excalibur to King Arthur.
Who is the Lady of the Lake?
This is the more scientific alternative to Fahrenheit for measuring temperature, and is used in most parts of the world.
What is the Celsius scale?
This Swiss opera is best known for the title character being forced to shoot an apple off his son's head.
What is William Tell?
Where a market is controlled by one company.
What is a Monopoly?
These special leaves are brightly colored to attract pollinators, and are collectively called a corolla.
What are petals?
Some sources credit this powerful wizard and right-hand man of King Arthur with creating the Round Table and Stonehenge.
Who is Merlin?
The higher the number is on this scale, the more basic it is. The more protons something has, the lower it is on the scale.
What is the pH scale?
This Italian comedy is a prequel to The Marriage of Figaro.
What is The Barber of Seville?
A tax placed on an import or export.
What is a tariff?
This hole in a leaf allows gas exchange.
What is a stoma?
This wife of King Arthur had an affair with the knight Sir Lancelot.
Who is Guinevere?
This is measured with a seismograph.
What is the Richter Scale?
This opera is about 4 poor friends living in Paris, and ends with Mimi dying of tuberculosis.
What is La Boheme?
This rate is usually a 2.5% increase per year and is measured with the consumer price index.
What is the inflation rate?
Surprisingly, flowers also have these egg-producing organs.
What are ovaries?
This knight known for his purity and honor is a big part of the search for the Holy Grail.
Who is Sir Galahad?
This temperature scale is based on the triple point of water: where all 3 phases of water can exist in equilibrium. Absolute zero is equivalent to 0 on this scale.
What is the Kelvin scale?
This opera involves an American soldier going to Japan, marrying Cio-Cio-San, going back to America and leaving her with his son, and then returning to Japan with his new American wife just for Cio-Cio to kill herself.
What is Madame (or Madama) Butterfly?
This rate can be cyclical (common in seasonal industries like fieldwork), frictional (the natural time between jobs that exists in most labor markets), or structural (when workers’ skills do not match those required by open jobs).
This female reproductive organ of the flower is in the middle of it.
What is the pistil?
This knight of the Round Table was another member on the search for the Holy Grail, and was apparently raised in the woods.
Who is Sir Percival?
This measures the intensity of sound waves.
What is the Decibel scale?
This Italian opera follows the title Ethiopian princess who is held captive in Egypt.
What is Aida?
This concept often used to measure a territory's economy is computed by summing consumption, investment, government expenditures, and exports, and then subtracting imports.
What is Gross Domestic Product (or GDP)?
This is the name for the stem holding up a flower.
What is a penduncle?