Every 8 years
Storms most often happen in the sky. This is done to make it easier for people to watch them. The storms happen mostly when you want to do something outside.
Every Second.
i think they happen everyday. loads happen a day but they do not get really high or they just don't happen at all. XX
flagellates
Yes. Convergence often occurs at a front.
A group of eight can be called an octad (things) or an octet (often performers), or even an eightsome. A related adjective is octonary (related to or based on eight). In Egyptian Mythology there was a group of eight deities called the Ogdoad (the eightfold). There are also groups that are comprised of eight that go by other things. The "Group of Eight" industrialized countries is known just like that, or by the abbreviation G8. There is also a group called the "Group of Eight" that are Australian Universities.
Once a year
The summit is the highest point of something, often a mountain. To get to the summit you must climb, either following a trail or using rock climbing equipment and creating your own path.
calderas
This could happen in many cases, but drill teams often do this.
a what is defined as an organized group of related objects or components that interact to create a whole ?
often often
were are waves happen at
Groups of eight are often called 'octets'.
It means that a religion, or religious group, splits up into two or more smaller pieces. This may often happen as a result of a difference in opinion.
Elements in group 18 do not often form bonds.
The term you may be looking for is "peak" or "summit." These are often used to describe the top point of a mountain.