Analogy Explained: Acoustics and Sound

The question presents an analogy: Acoustics is related to Sound in the same way that Nautics is related to a fourth term (?). We need to identify this relationship and apply it.

• Acoustics is the branch of science concerned with the properties and phenomenon of Sound. It is the study of sound.

Understanding Nautics

Now, let's consider the term Nautics:

• Nautics refers to the art, practice, or science of dealing with ships and Navigation, especially seafaring.

Applying the Relationship

Following the pattern identified (Term 1 is the study/field related to Term 2):

• Acoustics : Sound (Study of Sound)
• Nautics : ? (Study related to Nautics)

Based on the definition, Nautics is directly related to the practice and study of Navigation.

Evaluating the Options

Let's look at the given options in relation to Nautics:

• Light: The study of light is called Optics.
• Clouds: The study of clouds is called Nephology.
• Navigation: This term fits the relationship perfectly, as Nautics is the field concerning navigation.
• Altitude: While relevant in navigation, it's not the core subject matter Nautics studies in the same way Sound relates to Acoustics.

Conclusion for Nautics Analogy

Therefore, the term that relates to Nautics in the same way that Sound relates to Acoustics is Navigation.