Chromium nitride
Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN.
Its magnifying power is: 4X 5X 9X 20X. A 4-inch, f/5 telescope has a 1-inch eyepiece focal. Its magnifying power is 9x. This answer has been confirmed as correct and helpful.
Extreme weather e.g. snow and cold weather. Another main contributing factor is that many places have a long dry season.
D. Being cold temperatures can result in a cold nose. With prolonged exposure The body will start to lose heat faster than it can generate it, this is the result of hypothermia.