Culture shock is experienced when someone is placed in a situation where they are uncomfortable with the changes they see taking place around them, such as different styles of dress or foods.
It is real and may have physical effects
The Persians adopted whatever they found useful from other cultures.
Crusaders brought Islamic culture, architecture, and medicine back to Europe.
Identities are statements that are true for any number.
What are three statements that are true about Francis Drake?
Statements that always or never hold true are called "tautologies."
Without know what statements you are referring to we cannot answer.
Lots of statements about novels are true.
Lots of statements are not true about polymers.
Lots of statements about animals are true.
Lots of statements are not true about polymers.
That depends entirely on the statements in question.