Is this sentence gramatically correct? it's beneficial for a person to learn how to apply makeup because there's more to it than just improving appearance, but it is also a good way to boost a person's self confidence.

It is technically grammatically correct, but it could be worded better. For example, lose the contractions, add a comma before the word because, change it to self-confidence, and get rid of the word but.

yes... i think the grammar is fine.

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation: