A sudden violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earths crust or volcanic action.
I believe the answer is: b. a sense of urgency, which causes a person to take action.
This is the basic difference between needs and wants. When a need is unfulfilled, people would experience a certain level of threat to their survival , which is why it create a sense of urgency to fulfill. Examples of needs are food. drinks, and shelter.
2.north and west
3. Gemeny