Screaming
The letter 'U' is silent in the word 'boulder', the 'u' helps make the 'O' sound.
Goats "bleat," which is similar to the "baa" sound made by sheep.
Crow is well know for imitation of different sounds.
In a word phase letter s gives sound of z(buzzing sound)
quack
Yes, it can make the e sound as in "radio" or "machine" or "pizza" or "piano".
The c can make 2 sounds. It can make the k sound and the s sound.
AnswerQuack.
ugh
Yes, the second syllable of "region" is unstressed and has a schwa sound.
"Hair" and "scared" are really close, but they don't quite make a perfect rhyme because they have different endings. If you did "hair" and "scare" it would work, or even "hairy" and "scary" or "haired" and "scared." That last part has to sound the same as well.
The second A has a long A sound. In the homophone "aweigh" it is the EIGH or more specifically the EI that has the long A sound.