Answer the following question given this paragraph: Ceramics A ceramic is any nonmetallic, inorganic solid that is strong enough for use in structural applications. Traditional ceramics, which are based on metal silicates or aluminosilicates, are the materials used to make pottery, china, bricks, and concrete. Modern ceramics contain a much wider range of components and can be classified as either ceramic oxides, which are based on metal oxides such as alumina (Al2O3), zirconia (ZrO2), and beryllia (BeO), or nonoxide ceramics, which are based on metal carbides such as silicon carbide (carborundum, SiC) and tungsten carbide (WC), or nitrides like silicon nitride (Si 3N4) and boron nitride (BN). All modern ceramics are hard, lightweight, and stable at very high temperatures. Unfortunately, however, they are also rather brittle, tending to crack or break under stresses that would cause metals to bend or dent. Thus a major challenge for materials scientists is to take advantage of the desirable properties of ceramics, such as their thermal and oxidative stability, chemical inertness, and toughness, while finding ways to decrease their brittleness to use them in new applications. Few metals can be used in jet engines, for example, because most lose mechanical strength and react with oxygen at the very high operating. Q: What is any nonmetallic, inorganic solid that is strong enough for use in structural applications called? Choices: - tissue - metallic - glass - ceramic A:
ceramic
(Question)
Answer the following question given this paragraph: Venus rotates slowly in a direction opposite to the direction of its orbit. Q: Venus rotates slowly in a direction opposite to the direction of what? Choices: - the Earth's orbit - the orbit of Mars - the sun - its orbit A:
(Answer)
its orbit
Ques: Answer the following question given this paragraph: The process of getting oxygen into the body and releasing carbon dioxide is called respiration. Q: What is the process of getting oxygen into the body & releasing carbon dioxide called? Choices: - perspiration - precipitation - photosynthesis - respiration A:
Ans: respiration
(Q).
Answer the following question given this paragraph: The idea of evolution has been around for centuries. In fact, it goes all the way back to the ancient Greek philosopher Aristotle. However, evolution is most often associated with Charles Darwin. Darwin published a book on evolution in 1859 titled On the Origin of Species . In the book, Darwin stated the theory of evolution by natural selection. He also presented a great deal of evidence that evolution occurs. Q: The idea of evolution has been around for centuries. in fact, it goes all the way back to the ancient greek philosopher named? Choices: - Xerxes - Pluto - Galileo - aristotle A:
(A).
aristotle
Ques:Answer the following question given this paragraph: For thousands of years, humans have understood that characteristics such as eye color, hair color, or even flower color are passed from one generation to the next. The passing of characteristics from parent to offspring is called heredity . Humans have long been interested in understanding heredity. Many hereditary mechanisms were developed by scholars but were not properly tested or quantified. The scientific study of genetics did not begin until the late 19 th century. In experiments with garden peas, Austrian monk Gregor Mendel described the basic patterns of inheritance. Keep in mind that while we know about DNA and its role as the genetic material, Mendel did not know of the existence of DNA. Nor did he understand the concept of the chromosome or the process of meiosis, and yet, he was still able to correctly describe basic inheritance patterns. Q: In experiments with garden peas, austrian monk gregor mendel described the basic patterns of what? Choices: - behavior - preference - color - inheritance A:

Ans:inheritance
Answer the following question given this paragraph: Work is defined differently in physics than in everyday language. In physics, work means the use of force to move an object. The teen who is playing tennis in Figure above is using force to move her tennis racket, so she is doing work. The teen who is studying isn't moving anything, so she is not doing work. Q: What term in physics refers to the use of force to move an object? Choices: - mass - momentum - velocity - work A:
work