Why were single young men one of the hardest hit groups of people in Canada during Depression ?

The country's social-welfare structure proved woefully inadequate. And government attempts to address problems through policy proved misguided. A third of Canada's Gross National Income came from exports. Therefore, the country was hit hard by the collapse in international trade.

Explanation:

the answer is a. monarch

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.