Hey yall im hurt right now..i messed up bad

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.

Which of the following entities ensure that national security policies are carried out? check all that apply.

Physical needs include: a. the need for sleep b. the need to feel safe c. the need to feel secure d. all of the above