Answer the following question given this paragraph: Fission is the process in which an atomic nucleus breaks apart into two less massive nuclei. Energy is released in the process in many forms, heat, gamma rays and the kinetic energy of neutrons. If these neutrons collide with nuclei and induce more fission, then a runaway chain reaction can take place. Fission is responsible for nuclear energy and atom-bomb explosions: the fission of uranium acts as a heat source for the Earth's molten interior. Q: The process where an atomic nucleus breaks apart into two less massive nuclei is known as ______. Choices: - diffusion - fusion - collision - fission A:
fission
Answer the following question given this paragraph: Nonvascular plants include liverworts, hornworts, and mosses. They lack roots, stems, and leaves. Q: Nonvascular plants such as liverworts, hornworts, and mosses lack what three typical plant features? Choices: - chloroplasts, stems, flowers - flowers, leaves, bark - roots, leaves, chloroplasts - roots, stems, leaves A:
roots, stems, leaves
Q: Answer the following question given this paragraph: Transcription takes place in three steps: initiation, elongation, and termination. The steps are illustrated in Figure below . Q: Initiation, elongation, and termination are the three steps of what? Choices: - mutation - respiration - differentiation - transcription A:
A: transcription
Question: Answer the following question given this paragraph: Your immune system usually protects you from pathogens and keeps you well. However, like any other body system, the immune system itself can develop problems. Sometimes it responds to harmless foreign substances as though they were pathogens. Sometimes it attacks the body's own cells. Certain diseases can also attack and damage the immune system and interfere with its ability to defend the body. Q: What protects you from pathogens and keeps you healthy? Choices: - immunity system - health system - potent system - immune system A:
Answer: immune system
*Question*
Answer the following question given this paragraph: Another example of a thermal insulator is pictured in the Figure below . The picture shows fluffy pink insulation inside the attic of a home. Like the down filling in a snowsuit, the insulation traps a lot of air. The insulation helps to prevent the transfer of thermal energy into the house on hot days and out of the house on cold days. Other materials that are thermal insulators include plastic and wood. That's why pot handles and cooking utensils are often made of these materials. Notice that the outside of the toaster pictured in the opening image is made of plastic. The plastic casing helps prevent the transfer of thermal energy from the heating element inside to the outer surface of the toaster where it could cause burns. You can learn more about thermal insulators at this URL: http://www. school-for-champions. com/science/thermal_insulation. htm . Q: What is the name for a material that prevents the transfer of heat energy? Choices: - physical insulator - structure insulator - thermal condenser - thermal insulator A:
**Answer**
thermal insulator
Answer the following question given this paragraph: 21.4 DC Voltmeters and Ammeters Voltmeters measure voltage, and ammeters measure current. A voltmeter is placed in parallel with the voltage source to receive full voltage and must have a large resistance to limit its effect on the circuit. An ammeter is placed in series to get the full current flowing through a branch and must have a small resistance to limit its effect on the circuit. Both can be based on the combination of a resistor and a galvanometer, a device that gives an analog reading of current. Standard voltmeters and ammeters alter the circuit being measured and are thus limited in accuracy. Q: What do voltmeters measure? Choices: - temperature - amplitude - frequency - voltage A:
voltage