Mars is geologically dead. It did have volcanic eruptions in the past, but these ceased about 1.8 billion years ago
Never.
A volcano can erupt twice or even an infinite number of times. Most volcanoes erupt many times over their lives.
Volcanic activity is classified by how often a volcano erupts. A volcano may be active, intermittent, dormant, or extinct.Active volcanoes erupt constantly.Intermittent volcanoes erupt fairly regularly.Dormant volcanoes are inactive, but not long enough to determine whether they will erupt again or not.Extinct volcanoes have been inactive since the beginning of recorded history.
they arupt 2 a year
It depends on the volcano. Some volcanoes can erupt very often, while others will only erupt once every hundred years.
Yes, they often erupt again.
There are no volcanoes in the Grand Canyon.
Never.
every 2 years
Yes. Composite volcanoes often produce violent eruptions.
A volcano can erupt twice or even an infinite number of times. Most volcanoes erupt many times over their lives.
Volcanic activity is classified by how often a volcano erupts. A volcano may be active, intermittent, dormant, or extinct.Active volcanoes erupt constantly.Intermittent volcanoes erupt fairly regularly.Dormant volcanoes are inactive, but not long enough to determine whether they will erupt again or not.Extinct volcanoes have been inactive since the beginning of recorded history.
they arupt 2 a year
As many as it wants. Some volcanoes erupt often, some infrequently
It depends on the volcano. Some volcanoes can erupt very often, while others will only erupt once every hundred years.
No. Volcanoes erupt.
About 60 volcanoes erupt each year.