Final answer:
In Act 1 Scene 1 of The Tempest, the characteristic of a Shakespearean romance that is obvious is the presence of a supernatural element.
Step-by-step explanation:
In Act 1 Scene 1 of The Tempest, the characteristic of a Shakespearean romance that is obvious is the presence of a supernatural element. This is seen through the appearance of the storm and the magical actions of the character Ariel. The supernatural element adds an element of mystery and enchantment to the play.