Which statement correctly contrasts Mary Ludwig Hays’ contributions during the Revolution to those of Betsy Ross? A. Hays took charge of her husband's farm and Ross tended to wounded soldiers.
B. Hays made guns and cannons and Ross helped on the home front.
C. Hays operated a cannon in battle and Ross made the American flag.
D. Hays was killed in battle and Ross pushed for equal rights for women.

B. Hays made guns and cannons and Ross helped on the home front.

Explanation:

that is the correct answer

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.