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Volcanoes have been around since the formation of earth they are vents to relieve pressure from the earth's core.
Wiki User
∙ 6y ago
Wiki User
∙ 12y agoi couldn't tell you what year but it was during the ice age
Wiki User
∙ 15y agoThe current ones? Not very long on a geologic time scale. But the processes of glacier formation have existed for many hundreds of millions of years.
Wiki User
∙ 11y agothousands and thousands of years.
Wiki User
∙ 12y ago100000000
Anonymous
for as long as volcanoes have been on this earth.
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Glaciers can only form when?
Glaciers form when the rate of snow fall exceeds the rate of melting.
When did the first glaciers form?
The earliest evidence of glaciation is found in 2.8-billion-year-old sediments in South Africa.
How did glaciers help form the geography of the Midwest?
Glaciers helped form the geography of the Midwest because they created the 5 Great Lakes, while they were melting.
Why do glaciers cause erosion?
Glaciers cause erosion since they are in form of a block of snow which will melt and erode the land. This can be in form of abrasion, freeze-thaw or plucking.
What causes U-shaped valleys to form?
Glaciers.
Do valley glaciers form in area that have cold temperatures that are cold all year?
No, continental glaciers form in areas that have cold temperatures all year.
What can continental glaciers form?
Glaciers can form U shaped valleys.
Are there any glaciers in New Jersey?
No. New Jersey is above freezing most of the year, and there are no high mountains. There is no way the glaciers could form there in the current climate.
When can glaciers form?
Glaciers form when the rate of snow fall exceeds the rate of melting.
Glaciers can only form when?
Glaciers form when the rate of snow fall exceeds the rate of melting.
What kind of glaciers form when ice and snow build up in a mountain valley?
'Alpine' glaciers form.
What is Long narrow glaciers that form between mountains?
Valley Glaciers!
Is a glaciers a land form?
NO
How many glaciers are in a year in Alaska?
This makes no sence, no set amount of glaciers are made in a year
Why don't glaciers form in Australia?
because austrailia has warm weather and warm weather does not cause glaciers to form
What are long narrow glaciers form between mountains and are common in the Alps and the Andes.?
valley glaciers
Is a glaciers a mager land form?
Glaciers are not major landforms because they aren't land. Glaciers do, however, create landforms
