Problem: OPTIONS:
- generator power
- half-life
- fossil fuel
- thermonuclear power
Q: Answer the following question given this paragraph: 32.5 Fusion While basking in the warmth of the summer sun, a student reads of the latest breakthrough in achieving sustained thermonuclear power and vaguely recalls hearing about the cold fusion controversy. The three are connected. The Sun's energy is produced by nuclear fusion (see Figure 32.15). Thermonuclear power is the name given to the use of controlled nuclear fusion as an energy source. While research in the area of thermonuclear power is progressing, high temperatures and containment difficulties remain. The cold fusion controversy centered around unsubstantiated claims of practical fusion power at room temperatures. Q: What is the name given to the use of controlled nuclear fusion as an energy source? A:
Answer: thermonuclear power

Problem:OPTIONS:
- 21
- 30
- 22
- 28

Answer the following question given this paragraph: The Moon does not produce any light of its own. It only reflects light from the Sun. The Moon has phases because it orbits around Earth. One orbit takes about 28 days. As the moon moves around Earth, different parts of it appear to be lit up by the Sun. The Moon sometimes appears fully lit and sometimes completely dark. Sometimes it is partially lit. The different appearances of the Moon are referred to as phases of the Moon ( Figure below ). Q: About how many days does it take the moon to make one orbit around the earth? A:
****
A: 28

Answer the following question given this paragraph: Melanocytes are located at the bottom of the epidermis. Q: Melanocytes are located in which layer of the epidermis? A:
OPTIONS:
- follicle
- outer
- crust
- bottom
bottom

Answer the following question given this paragraph: We have a main sequence star nearby. Our Sun is on the main sequence, classified as a yellow dwarf. Our Sun has been a main sequence star for about 5 billion years. As a medium-sized star, it will continue to shine for about 5 billion more years. Most stars are on the main sequence. Q: Our sun is on the main sequence, like most stars, and it is classified by what colorful name? A:
OPTIONS:
- white dwarf
- blue dwarf
- red dwarf
- yellow dwarf

Answer: yellow dwarf

Question: Answer the following question given this paragraph: Like Uranus, Neptune is blue. The blue color is caused by gases in its atmosphere, including methane. Neptune is not a smooth looking ball like Uranus. The planet has a few darker and lighter spots. When Voyager 2 visited Neptune in 1986, there was a large dark-blue spot south of the equator. This spot was called the Great Dark Spot. When the Hubble Space Telescope photographed Neptune in 1994, the Great Dark Spot had disappeared. Another dark spot had appeared north of the equator. Astronomers believe that both of these spots represent gaps in the methane clouds on Neptune. Q: What color is neptune? A:
OPTIONS:
- yellow
- pink
- white
- blue
Answer: blue

input: OPTIONS:
- meaning of charges
- combining of charges
- signaling of charges
- separation of charges Now, answer this question: Answer the following question given this paragraph: Charging by Induction It is not necessary to transfer excess charge directly to an object in order to charge it. Figure 18.13 shows a method of induction wherein a charge is created in a nearby object, without direct contact. Here we see two neutral metal spheres in contact with one another but insulated from the rest of the world. A positively charged rod is brought near one of them, attracting negative charge to that side, leaving the other sphere positively charged. This is an example of induced polarization of neutral objects. Polarization is the separation of charges in an object that remains neutral. If the spheres are now separated (before the rod is pulled away), each sphere will have a net charge. Note that the object closest to the charged rod receives an opposite charge when charged by induction. Note also that no charge is removed from the charged rod, so that this process can be repeated without depleting the supply of excess charge. Another method of charging by induction is shown in Figure 18.14. The neutral metal sphere is polarized when a charged rod is brought near it. The sphere is then grounded, meaning that a conducting wire is run from the sphere to the ground. Since the earth is large and most ground is a good conductor, it can supply or accept excess charge easily. In this case, electrons are attracted to the sphere through a wire called the ground wire, because it supplies a conducting path to the ground. The ground connection is broken before the charged rod is removed, leaving the sphere with an excess charge opposite to that of the rod. Again, an opposite charge is achieved when charging by induction and the charged rod loses none of its excess charge. Q: What causes polarization in a neutral object? A:
A:
output:
separation of charges