28. Which term is synonymous with CONCAVE?
Answer: D
Sunken
The term synonymous with CONCAVE is "sunken," which describes a surface that curves inward, similar to the definition of concave.
A) Sunburned
The term "sunburned" refers to skin damage caused by overexposure to the sun and does not relate to the curvature of surfaces. Therefore, it is incorrect in the context of being synonymous with concave.
B) Convex
"Convex" refers to a surface that bulges outward, which is the opposite of concave. This makes it an incorrect choice, as it does not share the same meaning.
C) Puffed out
"Puffed out" describes something that is inflated or protruding, which again contrasts with the inward curvature implied by concave. Thus, this option is also incorrect.
D) Sunken
"Sunken" accurately describes a surface that is recessed or dips inward, making it synonymous with concave. This option directly aligns with the definition being sought.
Conclusion
"Sunken" is definitively the correct answer as it directly correlates to the concept of concavity, indicating an inward curve. All other options fail to capture this meaning, either describing different physical conditions or opposing characteristics.