Well, the world would eventually become corrupt.
In todays society we need school to get an education, and to get good grades. Without good grades we wouldn't be able to get a job, jobs pay for taxes towards the government and they pay for the upkeep of yourself, such as health, fitness, nutrition. Without money then you would suffer, and if there schools were closed then the approximate 2 billion children in this world would not be able to pay taxes when they're economically active.
Schools can't be closed, they get everybody ready for the future.
It is impossible to say how many schools would be closed. It would depend on how large of an area was effected by the blizzard, but one can assume that all schools in the path of the blizzard would be closed.
If New York City schools are closed, they would be closed on the third Monday of February for Presidents' Day.
To find out how many schools have been closed in 2013-2014, you would need to check newspapers or call schools to find out if they have beeb closed.
Not necessarily, but it is very likely after school activities would be closed when school is closed. School officials would make that decision.
I would delete "had". In fact, I would rewrite the sentence as "Area schools were closed due to the recent tornado."
If you want to know how many schools were closed on a day that has been a while back, yoi could look in the local papers of that time to find out the schools that were closed in your area. If you want to know what schools were closed in another area,. you would need to look in newspapers from the area the schools are in.
The world would collapse.
It would be very unusual for any type of school to be closed on Halloween.
There are no set high temperatures for schools to close. In fact, in the United States it would be extremely unusual for schools to close for heat since most schools are on summer break and it is not likely that summer classes would be closed.
Schools could be closed for presidential inaugurations because the administrators of the schools make the schedule each year; however, it would be rare for schools to close on inauguration day.
You would need to call schools or check in newspapers to find out what schools were closed on a particular day in 2011. Since Seotember 1, 2011 was on a Thursday which was not a holiday, it is unlikely that any schools that were scheduled to be open were closed, unless there was a weather related reason to close.
That would be decided by the school.