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.
Canada is a federation composed of ten provinces and three territories. In turn, these may be grouped into four main regions: Western Canada, Central Canada, Atlantic Canada, and Northern Canada (Eastern Canada refers to Central Canada and Atlantic Canada together).anada's long and complex relationship with the United States has had a significant impact on its economy and culture. Canada is a developed country and one of the wealthiest in the world, with the tenth highest nominal per capita income globally, and the eighth highest ranking in the Human Development Index.