What does it mean to measure a migration rate? how do migration rates affect populations? explain your answer in at least two or three sentences.

'migration rates' are measurements of how many people entering or leaving a country. and if more people are leaving, this could cause a population to change.

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.

the works of justice saves things/people

the works of service things/people

explanation:

that's the best i can word it. hope it !