Author Question: The principal ingredient of glass is: A. resin. B. lead. C. kaolin. D. sand. E. ... (Read 32 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
The principal ingredient of glass is:
 
  A. resin.
  B. lead.
  C. kaolin.
  D. sand.
  E. cloisonn.

Question 2

The Tree of Jesse is a work from:
 
  A. the golden age of stained glass.
  B. the Pueblo people of San Ildefonso.
  C. the 15th century.
  D. the first wave of feminist art.
  E. American ex-slaves of the 19th century.



14vl19

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

D
Although there are numerous formulas for glass, its principal ingredient is usually silica or sand.

Answer to Question 2

A
The Tree of Jesse is an example of a special branch of glasswork, stained glass, a technique used for windows, particularly in the great cathedrals of the 12th and 13th centuries.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

For a complete list of videos, visit our video library