what does it mean to characterize a nebula as diffuse?(1 point)
it reflects only visible radiation
it reflects only non-visible radiation.
its edges do not have clear boundaries.
its edges do not have clear boundaries.
Correct answer: its edges do not have clear boundaries.
Correct! When a nebula is described as diffuse, it means that its edges do not have clear boundaries.
To determine the meaning of characterizing a nebula as diffuse, we need to understand the concept of diffusion in the context of astronomy.
Diffusion refers to the spreading out or scattering of light. In the case of a nebula, which is a cloud of gas and dust in space, characterizing it as diffuse means that the light coming from the nebula is spread out and not concentrated in a small area. This results in a lack of clear boundaries or well-defined edges for the nebula.
Now, to answer the question specifically, we can conclude that the answer is:
Its edges do not have clear boundaries.
This is because characterizing a nebula as diffuse implies that its edges are not sharply defined, indicating a spread-out nature rather than a concentrated one.