Yes, students looking for a better education know that this education will not be obtained in the field and will have to travel to the city.
some countries receive many people, and others leave many people, this can positively affect trade but negatively affects the age and sex structure of the country to which they go
Explanation:
because immigrants are usually young in productive and reproductive ages
The clause <em>when we can rest </em>is a subordinate/dependent clause, meaning that it cannot stand on its own - it has to be a part of a larger, independent clause, as is the case here.