Answer the following question given this paragraph: Deposition also occurs when a stream or river empties into a large body of still water. In this case, a delta forms. A delta is shaped like a triangle. It spreads out into the body of water. An example is pictured below ( Figure above ). Q: Deposition also occurs when a stream or river empties into a large body of what? Choices: - even water - homogeneous water - calm water - still water A:
still water
(Question)
Answer the following question given this paragraph: Insects produce useful substances, such as honey, wax, lacquer, and silk. Q: Which type of animal creates useful substances such as honey, wax, lacquer, and silk? Choices: - fungus - bacteria - spiders - insects A:
(Answer)
insects
Ques: Answer the following question given this paragraph: Explain why the fission of heavy nuclei releases energy. Similarly, why is it that energy input is required to fission light nuclei? 19. Explain, in terms of conservation of momentum and energy, why collisions of neutrons with protons will thermalize neutrons better than collisions with oxygen. The ruins of the Chernobyl reactor are enclosed in a huge concrete structure built around it after the accident. Some rain penetrates the building in winter, and radioactivity from the building increases. What does this imply is happening inside? 21. Since the uranium or plutonium nucleus fissions into several fission fragments whose mass distribution covers a wide range of pieces, would you expect more residual radioactivity from fission than fusion? Explain. The core of a nuclear reactor generates a large amount of thermal energy from the decay of fission products, even when the power-producing fission chain reaction is turned off. Would this residual heat be greatest after the reactor has run for a long time or short time? What if the reactor has been shut down for months? 23. How can a nuclear reactor contain many critical masses and not go supercritical? What methods are used to control the fission in the reactor? 24. Why can heavy nuclei with odd numbers of neutrons be induced to fission with thermal neutrons, whereas those with even numbers of neutrons require more energy input to induce fission? 25. Why is a conventional fission nuclear reactor not able to explode as a bomb?. Q: The core of a nuclear reactor generates a large amount of what type of energy from the decay of fission products, even when the power-producing fission chain reaction is turned off? Choices: - evaporation - elastic - erosion - thermal A:
Ans: thermal
(Q).
Answer the following question given this paragraph: The winds of a tornado can reach very high speeds. The faster the winds blow, the greater the damage they cause. Wind speed and damage are used to classify tornadoes ( Table below ). Q: How do they classify tornadoes? Choices: - wind density - amount of destruction - wind temperature - wind speed A:
(A).
wind speed
Ques:Answer the following question given this paragraph: called the relative osmotic pressure if neither solution is pure water, and it is called the osmotic pressure if one solution is pure water. Osmotic pressure can be large, depending on the size of the concentration difference. For example, if pure water and sea water are separated by a semipermeable membrane that passes no salt, osmotic pressure will be 25.9 atm. This value means that water will diffuse through the membrane until the salt water surface rises 268 m above the pure-water surface! One example of pressure created by osmosis is turgor in plants (many wilt when too dry). Turgor describes the condition of a plant in which the fluid in a cell exerts a pressure against the cell wall. This pressure gives the plant support. Dialysis can similarly cause substantial pressures. Q: What is the condition of a plant in which the fluid in a cell exerts a pressure against the cell wall? Choices: - constriction - tumor - hydration - turgor A:

Ans:turgor
Ques: Answer the following question given this paragraph: Figure 35.22 Different parts of the motor cortex control different muscle groups. Muscle groups that are neighbors in the body are generally controlled by neighboring regions of the motor cortex as well. For example, the neurons that control finger movement are near the neurons that control hand movement. Q: Muscle groups are controlled by what mechanism? Choices: - activation energy - cerebral cortex - growth hormones - motor cortex A:
Ans:
motor cortex