Which statement best summarizes Great Britain's motivation for entering World War I?
A. Russian leaders asked for British support after Austria-Hungary
declared war on Serbia.
B. Great Britain demanded that Germany respect Belgium's neutrality,
but Germany refused.
C. A British leader was assassinated by Serbian nationalists who
opposed Britain's colonial policies.
D. British nationalists hoped to liberate English-speaking populations
in Austria-Hungary

i dont know this man

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.