But when a sore throat persists and you can't find relief, it's something to be taken seriously. Some possible causes of a chronic sore throat include: 1  Tonsillitis (infection of the tonsils). 2  Strep throat. 3  Allergies. 4  Mononucleosis (also referred to as mono).5  Inhaling air pollutants. 6  Smoking. 7  Influenza (the flu). 8  Inhaling through the mouth instead of the nose.ut when a sore throat persists and you can't find relief, it's something to be taken seriously. Some possible causes of a chronic sore throat include: 1  Tonsillitis (infection of the tonsils). 2  Strep throat. 3  Allergies. 4  Mononucleosis (also referred to as mono).
Canada CanÂ·aÂ·da (kÄnâ²É-dÉ) A country of northern North America. The original inhabitants of the region include the Inuit and First Nations. European colonists arrived in eastern Canada in the early 1600s, and the area was claimed by the French and then ceded (1763) to the English after the Seven Years' War.
A. Dominion of Canada is a title that was used for much of the late 19th and early 20th Century to refer to the nation of Canada in a full, formal capacity.