Lack of education.
No
Disappointingly is an adverb; it works in a similar way to well, happily, sadly etc.Eg:Disappointingly, there were no biscuits.Disappointingly, the program didn't respond.
Rather disappointingly it's "άθεος" - atheos.
"Everybody who has" is correct. "Everybody" is a singular pronoun, so it should be followed by a singular verb, which in this case is "has."
No, it is not. To disappoint is a verb. Adverbs related to the verb include disappointedly or disappointingly.
"Disappointingly" is an adverb containing six syllables.
Yes it is. It is the adverb form of the adjective unhappy. It means sadly or disappointingly.
The noun disappointment is related to the verb disappoint. Disappoint has participle adjectives disappointing abd disappointed. They form the adverbs disappointingly and disappointedly, which differ only in their point of view (disappointingly refers to something that disappoints, while disappointedly refers to the feeling of those it disappoints).
The correct phrase is "everybody is old." "Everybody" is a singular pronoun, so it should be followed by the singular verb "is" instead of the plural verb "are."
yes
everybody is crazy over him because he is so sexy and hot and he has a nice personality. I just love him.
The muscle of a sheep's heart is thick for the same reason our heart muscle is thick. It is thick as it has to pump blood around the body, and so it is under a lot of pressure.