Intonation refers to variations in pitch when speaking, such as raising, lowering, or sustaining the voice at certain points. It is a part of supersegmental phonology and carries meaningful information. Speakers have control over pitch but some variations may occur unintentionally. Tone is the major pitch movement within a tone unit and contributes to meaning, along with prominence and the interaction between speaker and listener. English is not a tonal language but some others like Chinese are.

2.  'Intonation' means when, why and how a
speaker chooses to raise, lower or sustain
the pitch of her or his voice at particular
points while speaking.
 Example:
 “-Your name is _John,”(simple assertion)
“`Your name is John?”,(question)

3.  It is a part of super segmental phonology.
 Intonation is a term used to refer to the
distinctive use of different patterns of pitch
that carry meaningful information
 Listening somebody speaking without paying
attention to the words: the melody you hear
is the intonation.

4.  It is necessary that the rises and falls must
be linguistically significant.
 And speaker does have control over his
pitch.
 For instance, due to the irregular movement
of speaker, he may have sudden rises and
falls in speech which cannot be controlled.
The difference in pitch is not significant

5.  Tone is the major pitch movement within the
tone unit. Theoverall behavior of pitch is “tone”
choice of pitch movement.
 The meaning component deriving from tone
does not attach to the word level only but to the
complete tone unit.
 The communication value of prominence and
tone choice depends on interaction between
listener and speaker.

6. Example:
When is the meeting?
On Saturday afterNOON
On SATurday afternoon
There are two types of tone
1. Falling Tone
2. Rising Tone

7.  These glides falling and rising occurs with in
connected speech.
 In single word, it occurs with in syllables.
 English is not tone language because
different tones make no difference in
meanings.
 But chinese is a tone language.

8. θæŋk ju
