Question: Answer the following question given this paragraph: The largest-mass stars become black holes . These extremely large stars end their life in the same way as a medium-mass star in that they become a supernova. After the outer layers are blown away in the supernova, however, the core of the star shrinks down in volume but still has a huge mass. The density of this object is extremely high, even denser than neutron stars. This dense object will have a gravitational force so large that not even light can escape from the body. (A companion topic to this occurs in The General Theory of Relativity where we see than extremely strong gravitational attraction can even attract light. ) These objects appear black because light cannot leave them, that is, they pull all light back to their surface. Black holes capture everything nearby due to their massive gravity and so they grow in size. Black holes are a common topic for science fiction but keep in mind, they are simply a very dense ball of matter with intense gravitational attraction. Q: Very large stars eventually become what extremely dense space regions, which are so dense that no light can escape from them? A:
OPTIONS:
- worm holes
- dark matter
- moons
- black holes
Answer: black holes

input with options: Answer the following question given this paragraph: All living things need energy. They need it to power the processes of life. For example, it takes energy to grow. It also takes energy to produce offspring. In fact, it takes energy just to stay alive. Remember that energy can't be created or destroyed. It can only change form. Energy changes form as it moves through ecosystems. Q: Energy cannot be created or destroyed - it can only change what? A:
OPTIONS:
- kind
- fluid
- shape
- form
output: form

Q: Answer the following question given this paragraph: Phase and Surface Area Effects When two reactants are in the same fluid phase, their particles collide more frequently than when one or both reactants are solids (or when they are in different fluids that do not mix). If the reactants are uniformly dispersed in a single homogeneous solution, then the number of collisions per unit time depends on concentration and temperature, as we have just seen. If the reaction is heterogeneous, however, the reactants are in two different phases, and collisions between the reactants can occur only at interfaces between phases. The number of collisions between reactants per unit time is substantially reduced relative to the homogeneous case, and, hence, so is the reaction rate. The reaction rate of a heterogeneous reaction depends on the surface area of the more condensed phase. Automobile engines use surface area effects to increase reaction rates. Gasoline is injected into each cylinder, where it combusts on ignition by a spark from the spark plug. The gasoline is injected in the form of microscopic droplets because in that form it has a much larger surface area and can burn much more rapidly than if it were fed into the cylinder as a stream. Similarly, a pile of finely divided flour burns slowly (or not at all), but spraying finely divided flour into a flame produces a vigorous reaction (Figure 14.3 "The Effect of Surface Area on Reaction Rates"). Similar phenomena are partially responsible for dust explosions that occasionally destroy grain elevators or coal mines. Q: Do particles collide more in two reactants when they are both in fluid forms or solid forms? A:

OPTIONS:
- plasma
- neither
- solid
- fluid

A: fluid

input: OPTIONS:
- triaxial
- biaxial
- quadaxial
- uniaxial Now, answer this question: Answer the following question given this paragraph: 9.6 | Anatomy of Selected Synovial Joints By the end of this section, you will be able to: Describe the bones that articulate together to form selected synovial joints Discuss the movements available at each joint Describe the structures that support and prevent excess movements at each joint Each synovial joint of the body is specialized to perform certain movements. The movements that are allowed are determined by the structural classification for each joint. For example, a multiaxial ball-and-socket joint has much more mobility than a uniaxial hinge joint. However, the ligaments and muscles that support a joint may place restrictions on the total range of motion available. Thus, the ball-and-socket joint of the shoulder has little in the way of ligament support, which gives the shoulder a very large range of motion. In contrast, movements at the hip joint are restricted by strong ligaments, which reduce its range of motion but confer stability during standing and weight bearing. This section will examine the anatomy of selected synovial joints of the body. Anatomical names for most joints are derived from the names of the bones that articulate at that joint, although some joints, such as the elbow, hip, and knee joints are exceptions to this general naming scheme. Q: A multiaxial ball-and-socket joint has much more mobility than a what hinge joint? A:
A:
output: uniaxial

Answer the following question given this paragraph: Neptune's appearance changes due to its turbulent atmosphere. Winds are stronger than on any other planet in the solar system. Wind speeds can reach 1,100 km/h (700 mph). This is close to the speed of sound! The rapid winds surprised astronomers. This is because Neptune receives little energy from the Sun to power weather systems. It is not surprising that Neptune is one of the coldest places in the solar system. Temperatures at the top of the clouds are about 218C (360F). Q: Why does neptune's appearance change? A:

OPTIONS:
- the seasons
- the changing orbit
- the speed of rotation
- turbulent atmosphere

Answer: turbulent atmosphere

Q: Answer the following question given this paragraph: Cold and snow are typical for Chicago in the winter. Q: What is typical weather for chicago in winter? A:

OPTIONS:
- rain and wind
- dry and windy
- ice and humidity
- cold & snow

A:
cold & snow