What is the average annual temperature range of Antarctica?

swampyacres1, real cold

Jonesy, lol that came out saying that the US is a 3rd world country!

I use hint

Jonesy, Metric measurements make much more sense and a worldwide quiz can't cover all types of measure. In Britain, we used to have imperial measurements, but in 1971 we changed to metric.. In my childhood measurements for everything were complicated and seemed irrational, now much simpler.

TRUE CANADIAN Laurel, 3 3rd world countries don't use the metric system - Libya, Myanmar, and the US!😄. Whilst on the subject, a meter is an instrument for measuring flow, pressure, voltage, etc. A metre is a unit of measurement.

swampyacres1, 9/5 + 32