Answer:
3 yes you need to conduct more research because you need to vary if your information is accurate.
Explanation
Sometimes websites will give you a false answer and you just need to double-check or triple check to make sure that your answer is correct and is not. Because if used a minute then you get a bad grade on whatever it is.
Please explain more
what do u mean
give details
Answer:
In other words, it is so old that it is difficult to imagine.
Explanation:
In this case, the simplest answer is the correct one. It's not about math or science; it's just what it is; the history of the universe is very hard to imagine because is humans haven't been in it for very long.