2. What is NOT one of the possible origins of light in space? *
O black holes
O cool or hot dust
O shocked gas
O spot's on a star's surface
O spot's on a star's surface
The possible origins of light in space include black holes, cool or hot dust, and shocked gas. However, spots on a star's surface are not one of the possible origins of light in space.
To determine the answer to this question, we need to understand the different possible origins of light in space and then identify the one that does not belong to that list.
Possible origins of light in space:
1. Black holes: Although black holes are known for their intense gravitational pull, they do not emit light directly. However, the surrounding matter falling into black holes can become extremely hot and emit light.
2. Cool or hot dust: Dust particles in space can reflect or absorb light, depending on their temperature. Cooler dust appears darker, while hotter dust emits light in the infrared spectrum.
3. Shocked gas: When gas in space collides with other objects or undergoes energetic processes, such as explosive events or powerful shockwaves, it can produce emission of light.
4. Spots on a star's surface: Stars often have regions known as sunspots, which appear darker on the surface due to variations in temperature and magnetic activity. However, these spots do not emit light on their own.
Based on the given options, the choice that is not one of the possible origins of light in space is "spot's on a star's surface."