Whats the coldest temperature and the hottest temperature in antarctica

Which of the following is true of all geographic locations on earth?

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed

What are three similarities between medc countries and ledc countries?