Observational learning

Which of the following statements is not true about regions? a.) regions have fixed boundaries that are determined by the region's inhabitants. b.) a region can be defined by physical characteristics, such as climate, landform, and vegetation. c.) regions can change over time. d.) a region can be defined by human characteristics, such as language, government, and economic activity. e.) the same location can be considered part of multiple regions.

What are the countries in south asia?

Sorry two big valves your rpm will go down plus the smaller ones will give you more horsepower your rpm will go up the answer is b