We know Clark has Super Vision* (Telescopic / Microscopic / X-Ray / InfraRed / Microwave Vision) to a maximal degree.
We know Clark has Super Hearing (Extended / Directional / Superhuman / Subhuman Hearing) to a maximal degree.
But what about his three other senses?
Clark can smell, taste and touch/feel at least as good as the rest of us. But how much so?
It seems weird that his vision and hearing get almost 100% of the emphasis in terms of superhuman senses, and his 3 other senses get so little narrative spotlight by comparison.
But are his 3 senses even officially superhuman to begin with, or are we just presuming?
What, if any, is the evidence for this, either in current or former canon?
And beyond that, SHOULD he also regularly display Super Smell, Super Taste and Super Touch/Feel? And how useful would these be in a narrative sense?
* - Heat Vision is technically not part of his Super Vision but instead an effect of the solar radiation absorption dispersed through his eyes.