input with options: Answer the following question given this paragraph: Gluons ( g ) are the proposed carrier particles for the strong nuclear force, although they are not directly observed. Like quarks, gluons may be confined to systems having a total color of white. Less is known about gluons than the fact that they are the carriers of the weak and certainly of the electromagnetic force. QCD theory calls for eight gluons, all massless and all spin 1. Six of the gluons carry a color and an anticolor, while two do not carry color, as illustrated in Figure 33.22(a). There is indirect evidence of the existence of gluons in nucleons. When high-energy electrons are scattered from nucleons and evidence of quarks is seen, the momenta of the quarks are smaller than they would be if there were no gluons. That means that the gluons carrying force between quarks also carry some momentum, inferred by the already indirect quark momentum measurements. At any rate, the gluons carry color charge and can change the colors of quarks when exchanged, as seen in Figure 33.22(b). In the figure, a red down quark interacts with a green strange quark by sending it a gluon. That gluon carries red away from the down. Q: Like quarks, gluons may be confined to systems having a total color of what? A:
OPTIONS:
- yellow
- blue
- red
- white
output: white

input with options: Answer the following question given this paragraph: Occipital Bone The occipital bone is the single bone that forms the posterior skull and posterior base of the cranial cavity (Figure 7.9; see also Figure 7.8). On its outside surface, at the posterior midline, is a small protrusion called the external occipital protuberance, which serves as an attachment site for a ligament of the posterior neck. Lateral to either side of this bump is a superior nuchal line (nuchal = "nape" or "posterior neck"). The nuchal lines represent the most superior point at which muscles of the neck attach to the skull, with only the scalp covering the skull above these lines. On the base of the skull, the occipital bone contains the large opening of the foramen magnum, which allows for passage of the spinal cord as it exits the skull. On either side of the foramen magnum is an oval-shaped occipital condyle. These condyles form joints with the first cervical vertebra and thus support the skull on top of the vertebral column. Q: What is the single bone that forms the posterior skull and posterior base of the cranial cavity? A:
OPTIONS:
- limbic bone
- maxilla
- radiating bone
- occipital bone
output: occipital bone

input with options: Answer the following question given this paragraph: Q: A system in what state cannot spontaneously change, and therefore can do no work? A:
OPTIONS:
- equality
- balance
- stability
- equilibrium
output: equilibrium

input with options: Answer the following question given this paragraph: Freshwater biomes have water that contains little or no salt. They include standing and running freshwater biomes. Standing freshwater biomes include ponds and lakes. Lakes are generally bigger and deeper than ponds. Some of the water in lakes is in the aphotic zone, where there is too little sunlight for photosynthesis. Plankton and plants, such as the duckweed in Figure below , are the primary producers in standing freshwater biomes. Q: Ponds and lakes are examples of what kind of biome? A:
OPTIONS:
- standing lake biome
- standing marine biome
- standing liquid biome
- standing freshwater biome
output:
standing freshwater biome