At the beginning, the international supermarket chain‘s individual store in china has great authority to make major decisions, such as pricing, purchasing. now the company is planning to establish 4 purchasing centers by which the decision of purchasing will be made and purchasing activities will be taken for the individual store in the relevant regions. what challenges the company will face when it changes the purchasing mode?

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.

answer; in england;