If you know that you are not pregnant, how long is too long before you should be alarmed if you don't have your period? What could be the possible reasons for a delayed period?
WEATHER: The tundra is the coldest and the driest of all the biomes on Earth. There is very little rainfall in the tundra; it rains less than ten inches a year. Winters here are long, and summers short, sometimes they last for only 6 - 10 weeks. In the winter the temperature can reach -50Â°F (-45.5Â°C).
Report Abuse. Antarctica is the coldest place on Earth. The coldest natural temperature that was ever recorded on Earth was â89.2 Â°C (â128.6 Â°F) at the Russian Vostok Station in Antarctica on 21 July 1983. Antarctica is colder than the Arctic for two reasons.First, much of the continent is greater than 3 kilometres (2 mi) above sea level, and temperature decreases with elevation.ntarctica is colder than the Arctic for two reasons. First, much of the continent is greater than 3 kilometres (2 mi) above sea level, and temperature decreases with elevation.