how many time zones are there in canada?
what’s different about Newfoundland time?
half an hour difference (instead of an hour)
how many hours difference is there between Canada’s most easterly and most westerly time zones?
4 and a half hours
time zones are an interval of __ degrees apart?
15 degrees (360/24=15)
example of a direct statement scale
1cm = 100km
example of a representative fraction (ratio) scale
1 : 500 000
international date line
tropic of cancer
tropic of capricorn
eastings first, then northings
how many digits are there in a military grid reading?
contour lines create what pattern when crossing a valley?
V (that always points uphill)
what are closed depressions?
holes? basically below 0
closed depressions are marked with
index contours indicate
a specific or important interval
who came up with the idea that there should be a standard time zone system worldwide?
Sir Stanford Fleming (Canadian)
when did the standard time zone system become official?