The interval between C and E is a major third because it consists of four half steps.

The scale that begins on C and contains the notes C, D, E, F, G, A, and B is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between F and A is a perfect fourth because it consists of five half steps.

The scale that begins on G and contains the notes G, A, B, C, D, E, and F# is a minor scale because it contains the intervals of a minor second, a major third, a perfect fourth, a perfect fifth, a minor sixth, and a minor seventh.

The interval between B and D is a major third because it consists of four half steps.

The scale that begins on D and contains the notes D, E, F#, G, A, B, and C# is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between A and C# is a minor third because it consists of three half steps.

The scale that begins on E and contains the notes E, F#, G#, A, B, C#, and D# is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between C# and E is a major third because it consists of four half steps.

The scale that begins on F# and contains the notes F#, G#, A#, B, C#, D#, and E# is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between D# and F# is a perfect fourth because it consists of five half steps.

The scale that begins on G# and contains the notes G#, A#, B#, C#, D#, E#, and F## is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between A# and C## is a minor third because it consists of three half steps.

The scale that begins on B# and contains the notes B#, C##, D##, E#, F##, G##, and A## is a major scale because it contains the intervals of a major second, a major third, a perfect fourth, a perfect fifth, a major sixth, and a major seventh.

The interval between C## and E# is a major third because it consists of four half steps.