A comet<span> is an icy small Solar System body that, when passing close to the Sun, warms and begins to evolve gasses, a process called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail.</span>
Wear simple clothing, living in farming communities and using horse-drawn vehicles are some of the items that describe living in an Amish culture. You didn't put the available items in the question, so I'm not sure if there are more. These are some of them though.
<span>True. Contour lines are found on maps to determine equal elevation of connecting points. When a person walks along contour lines he neither gains nor loses elevation.
False. Relief does not refer to the height of an object above sea level. Mean Sea level determines the height of an object above sea level. <span>
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Iron Curtain is the best answer. Hope this helps you!