Why are census tracts generally smaller in urban areas than in rural areas?

Explanation:

Census tract is a subdivision of a county having a maximum size of 8000.

Census tract are generally smaller in urban areas than in rural areas because of population, The larger the population density, the smaller the tract becomes and the smaller the city the larger the tract becomes, Because the population of urban areas are high and growth increasing, the census tracts are split making them smaller while in the rural areas, due to the low population density/decreasing population, census tracts are merged causing them to be bigger

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.