*Question*
Q: What force holds together both types of star clusters? Read this paragraph and choose the correct option from the provided answers: Star clusters are small groups of stars. A star cluster is smaller than a galaxy. There are two main types, open clusters and globular clusters. Both types are held together by gravity. Choices: - weight - magnetism - inertia - gravity A:
**Answer**
gravity

*Question*
Q: Whan an alkene is aquired by an alkyl halide in an organic reaction, what kind of reaction is this? Read this paragraph and choose the correct option from the provided answers: When an alkene is acquired by an alkyl halide during an organic reaction. An example of elimination reaction. Choices: - migration - subtraction - extinction - elimination A:
**Answer**
elimination

*Question*
Q: At the earth's surface, the air pressure exerted on you is a result of the weight of what above you? Read this paragraph and choose the correct option from the provided answers: 11.4 Variation of Pressure with Depth in a Fluid If your ears have ever popped on a plane flight or ached during a deep dive in a swimming pool, you have experienced the effect of depth on pressure in a fluid. At the Earth's surface, the air pressure exerted on you is a result of the weight of air above you. This pressure is reduced as you climb up in altitude and the weight of air above you decreases. Under water, the pressure exerted on you increases with increasing depth. In this case, the pressure being exerted upon you is a result of both the weight of water above you and that of the atmosphere above you. You may notice an air pressure change on an elevator ride that transports you many stories, but you need only dive a meter or so below the surface of a pool to feel a pressure increase. The difference is that water is much denser than air, about 775 times as dense. Consider the container in Figure 11.10. Its bottom supports the weight of the fluid in it. Let us calculate the pressure exerted on the bottom by the weight of the fluid. That pressure is the weight of the fluid mg divided by the area A supporting it (the area of the bottom of the container):. Choices: - magnetic force - humidity - water - air A:
**Answer**
air

*Question*
Q: If only blue light strikes green leaves what happens to it? Read this paragraph and choose the correct option from the provided answers: The color of light that strikes an object may also affect the color that the object appears. For example, if only blue light strikes green leaves, the blue light is absorbed and no light is reflected. Choices: - it causes heating - it is reflected - it causes cooling - it is absorbed A:
**Answer**
it is absorbed