Question

The main difference between impromptu and extemporaneous speaking is that

Answer 1

When the subject is public speaking and the two words are being distinguished, “extemporaneous” means “carefully prepared but delivered without notes”; “impromptu” means “composed or uttered without previous preparation.”

Answer 2

Answer:

Highlands or uplands are any mountainous region or elevated mountainous plateau. Generally speaking, upland (or uplands) refers to ranges of hills,[1]typically up to 500–600 m. Highland (or highlands) is usually reserved for ranges of low mountains.