Which two areas are in the temperate zone, and which two areas have the coldest climates? artic circletropic of cancerequatortropic of capricornantartic circle?

The two areas that are in temperate zone area the circle tropic of cancer or the norther tropic and equator tropic of Capricorn or the southern tropic. These two zones is positioned where the sun can be directly overhead. 
 The two areas that have coldest climates are the arctic circle and antarctic circle.These areas are situated at the opposite poles of the earth where the temperature is at the lowest. 

C. gemstones they are the only non metallic mineral from the list.