The majority of Canada's population is concentrated in the areas close to the Canada–US border. Its four largest provinces by area (Quebec, Ontario, British Columbia and Alberta) are also (with Quebec and Ontario switched in order) its most populous; together they account for 86% of the country's population.
The light rays come to a sharp focusing point on the retina. The retina functions much like the film in a camera. ... The retina receives the image that the cornea focuses through the eye's internal lens and transforms this image into electrical impulses that are carried by the optic nerve to the brain.
Distance in time is around 38 hours
<span>Water is scarce because there are few lakes and rivers and many mountain ranges block rain from moving inland.</span>