Another one! what is ecosystem-based management? a. the construction of zoos and national parks to protect wildlife b. the extraction of important minerals and resources from underground c. the introduction of legislation that deal with climate change d. the use of resources in a way that reduces human impact on the environment e. the formation of a global platform to discuss greenhouse gas emission

D. the use of resources in a way that reduces human impact on the environment

the two sets of lines are :

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.