Earth

What is another name for permanently frozen ground?

More Questions from Earth
What event can cause much damage from the shaking of the Earth's crust?
Reveal Answer
What soft brown coal that has lost all of its moisture called?
Reveal Answer
Which one of these is most alkali?
Reveal Answer
The coldest recorded temperature on Earth, -128 degrees F., was taken where?
Reveal Answer
A 286-mph tornado ripped through what U.S. state?
Reveal Answer
What is the measure of the moisture level of air called?
Reveal Answer
Where is most of the earth's gold located?
Reveal Answer
What storm produces lightning?
Reveal Answer