Answer the following question given this paragraph: Sometimes deep ocean water rises to the surface. This is called upwelling . Figure below shows why it happens. Strong winds blow surface water away from shore. This allows deeper water to flow to the surface and take its place. Q: What is the name for the term that describes deep ocean water rising the surface? Choices: - percolating - leaking - up-rising - upwelling A:
upwelling
(Question)
Answer the following question given this paragraph: Electroplating In a process called electroplating, a layer of a second metal is deposited on the metal electrode that acts as the cathode during electrolysis. Electroplating is used to enhance the appearance of metal objects and protect them from corrosion. Examples of electroplating include the chromium layer found on many bathroom fixtures or (in earlier days) on the bumpers and hubcaps of cars, as well as the thin layer of precious metal that coats silver-plated dinnerware or jewelry. In all cases, the basic concept is the same. A schematic view of an apparatus for electroplating silverware and a photograph of a commercial electroplating cell are shown in Figure 19.24 "Electroplating". Q: What is the process in which a layer of a second metal is deposited on the metal electrode that acts as the cathode during electrolysis? Choices: - casting - cold fusion - distillation - electroplating A:
(Answer)
electroplating
Ques: Answer the following question given this paragraph: Electron Microscopes In contrast to light microscopes, electron microscopes use a beam of electrons instead of a beam of light. Not only does this allow for higher magnification and, thus, more detail (Figure 3.3), it also provides higher resolving power. Preparation of a specimen for viewing under an electron microscope will kill it; therefore, live cells cannot be viewed using this type of microscopy. In addition, the electron beam moves best in a vacuum, making it impossible to view living materials. In a scanning electron microscope, a beam of electrons moves back and forth across a cell's surface, rendering the details of cell surface characteristics by reflection. Cells and other structures are usually coated with a metal like gold. In a transmission electron microscope, the electron beam is transmitted through the cell and provides details of a cell's internal structures. As you might imagine, electron microscopes are significantly more bulky and expensive than are light microscopes. Q: What powerful microscopes use a beam of subatomic particles instead of a beam of light? Choices: - complex microscopes - scientific microscopes - nuclear microscopes - electron microscopes A:
Ans: electron microscopes
(Q).
Answer the following question given this paragraph: Another common vision defect is astigmatism, an unevenness or asymmetry in the focus of the eye. For example, rays passing through a vertical region of the eye may focus closer than rays passing through a horizontal region, resulting in the image appearing elongated. This is mostly due to irregularities in the shape of the cornea but can also be due to lens irregularities or unevenness in the retina. Because of these irregularities, different parts of the lens system produce images at different locations. The eye-brain system can compensate for some of these irregularities, but they generally manifest themselves as less distinct vision or sharper images along certain axes. Figure 26.8 shows a chart used to detect astigmatism. Astigmatism can be at least partially corrected with a spectacle having the opposite irregularity of the eye. If an eyeglass prescription has a cylindrical correction, it is there to correct astigmatism. The normal corrections for short- or farsightedness are spherical corrections, uniform along all axes. Q: Unevenness or asymmetry in the focus of the eye describes what visual defect? Choices: - presbyopia - hyperopia - myopia - astigmatism A:
(A).
astigmatism
Ques:Answer the following question given this paragraph: The job of the respiratory system is the exchange of gases between the body and the outside air. This process, called respiration , actually consists of two parts. In the first part, oxygen in the air is drawn into the body and carbon dioxide is released from the body through the respiratory tract. In the second part, the circulatory system delivers the oxygen to body cells and picks up carbon dioxide from the cells in return. The lungs are organs of the respiratory system. It is in the lungs where oxygen is transferred from the respiratory system to the circulatory system. Q: What does the respiratory system exchange between the body and the outside air? Choices: - fluids - blood - nutrients - gases A:

Ans:gases
Answer the following question given this paragraph: Chemical energy is stored in wood and released when the wood burns. Q: When wood is burned what kind of energy allows the wood to burn? Choices: - physical - radiation - carbon - chemical A:
chemical