Canadian Universities--majors

<p>For canadian unis...Do we have to declare our majors when we apply?
and can we double major in different campuses? say like...finance in one campus and art history in another campus? because i heard in canadian unis, you start "business" in freshman year....</p>

<p>here are some colleges i'm thinking of:</p>

<p>U of T
Mcgill
Queens
Western Ontario</p>

<p>possible majors:
finance, art history, phychology...</p>

<p>what should i do in undergrad? which will be more helpful/necessary to take in undergrad? and maybe some other courses in grad school...</p>