10. To what does Romeo first compare Juliet during the balcony scene?

The moon

The stars

A summer's day

The morning sun

A summer’s day is what Romeo compared juliet

He compares her to the sun. Juliet's beauty of light is most apparent in the night against which there is the greatest contrast. Earlier, in Act I, Scene 5, when Romeo first sees Juliet, for instance, he remarks, Oh, she doth teach the torches to burn bright!