Much of Russia's international power and influence comes from: A. the oil and natural gas it supplies to other countries.
B. its commitment to protecting freedom of speech.
C. the market economy it established after the fall of the Soviet
Union.
D. its commitment to reduce the size of its military.

The answer is C

Russia’s biggest resource is their oil supply and natural gas to other countries. Do not listen to the answer before mine because if you choose A you will get it wrong.

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.