Answer:
A landform is a feature on Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms.
20: checks and balances!
21: Duties: execute law, enforce law, make laws. who does them? EXECUTIVE branch EXECUTEs laws, LEGISLATIVE branch makes laws, and JUDICIAL branch ENFORCES the laws. making sure they are constitutional.
The total force (a) is the combination of active and reserve components service chiefs provide, and combatant commanders effectively use to full capability.
In the United States, the total force also comprises the civilian personnel as well as the contractors working for the Department of Defense. This represents about 3 million people. The management of this staff is under the responsibility of the Assistant Secretary of Defense for Manpower and Reserve Affairs.
I believe the correct answer is security needs.
According to Maslow's hierarchy of needs, a theory
in psychology proposed by Abraham Maslow in 1943, the need to protect oneself
from physical and economic harm is related to security needs. Security needs
also include security of environment, employment, resources and health.