What happens if I take 8000mg of calcium in one go

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?

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Which measure of an earthquake depends on how close you are to the focus?