The litosphere is the earth's outermost layer. This is not a whole continuous piece as its crust and topmost mantle is made up of hard and rocky outer surface and is sub divided into tectonic plates. The lithosphere stretches to about 60 miles.
Go to your school or local library and check out a book of scary stories most of them are really good
The answer is the second one
New Zealand has had a three decade anti-nuclear campaign so it's safe to assume they are.