Explain how trusts, pools, holding companies, and communities of interest work to reduce competition and to introduce economies of scale.

answer; /// i believe that the correct answer is ; /// renaissance,printing press, age of exploration and protestant reformation;

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.

is there multiple choice or do you need like an essay answer?

its d i know cause i've been googling it