Answer the following question given this paragraph: 22.6 The Hall Effect We have seen effects of a magnetic field on free-moving charges. The magnetic field also affects charges moving in a conductor. One result is the Hall effect, which has important implications and applications. Figure 22.27 shows what happens to charges moving through a conductor in a magnetic field. The field is perpendicular to the electron drift velocity and to the width of the conductor. Note that conventional current is to the right in both parts of the figure. In part (a), electrons carry the current and move to the left. In part (b), positive charges carry the current and move to the right. Moving electrons feel a magnetic force toward one side of the conductor, leaving a net positive charge on the other side. This separation of charge creates a voltage , known as the Hall emf, across the conductor. The creation of a voltage across a current-carrying conductor by a magnetic field is known as the Hall effect, after Edwin Hall, the American physicist who discovered it in 1879. Q: The creation of a voltage across a current-carrying conductor by a magnetic field is known as what? Choices: - off effect - newton effect - show effect - hall effect A:
hall effect
(Question)
Answer the following question given this paragraph: The cecum is the first part of the large intestine, where wastes enter from the small intestine. The wastes are in a liquid state. As they passes through the colon, which is the second part of the large intestine, excess water is absorbed. The remaining solid wastes are called feces . Feces accumulate in the rectum, which is the third part of the large intestine. As the rectum fills, the feces become compacted. After a certain amount of feces accumulate, they are eliminated from the body. A sphincter controls the anus and opens to let feces pass through. Q: What is the first part of the large intestine, where wastes enter from the small intestine? Choices: - bowel - esophagus - stomach - the cecum A:
(Answer)
the cecum
Ques: Answer the following question given this paragraph: Radioactive elements and isotopes have unstable nuclei. To become more stable, the nuclei undergo radioactive decay. In radioactive decay, the nuclei give off, or emit, radiation in the form of energy and often particles as well. There are several types of radioactive decay, including alpha, beta, and gamma decay. Energy is emitted in all three types of decay, but only alpha and beta decay also emit particles. Q: Radioactive decay can give off energy and what else? Choices: - light - ions - atoms - particles A:
Ans: particles
(Q).
Answer the following question given this paragraph: Roundworms have organ-level organization, in which two or more types of tissues work together to perform a particular function as an organ. For example, a roundworm has a primitive brain that controls how the organism responds to the environment. Q: Roundworms exemplify what type of organization, where two or more types of tissues work together to perform a particular function as an organ? Choices: - bone-level organization - land-level organization - delicate - level organization - organ-level organization A:
(A).
organ-level organization
Ques:Answer the following question given this paragraph: Q: Large increases in the diversity of life have resulted from adaptive radiations that followed what? Choices: - mass mutations - mass migrations - glaciers - mass extinctions A:

Ans:mass extinctions
Ques:Answer the following question given this paragraph: Crocodilia, containing both alligators and crocodiles, is an order of large reptiles. Reptiles belonging to Crocodilia are the closest living relatives of birds. Reptiles and birds are the only known living descendants of the dinosaurs. Some would day that alligators and crocodiles actually look like small dinosaurs. Dinosaurs that evolved wings are the ancestors of birds. Q: Reptiles and birds are the only known living descendants of what? Choices: - mammals - fossils - dragons - dinosaurs A:

Ans:
dinosaurs