Which of these elevation zones lies MOSTLY above the tree line? A:Tierra Helada, B:Tierra Fria, C:Tierra Templada, D:Tierra Caliente

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?

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

Less developed nations have low literacy rates. true or false