An earthquake occurs in which 'sphere?

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Whay is the following best defines climate

What is the average speed of a car that traveled 300.0 miles in 5.5 hours