What are three most important elements of weather

The three most important elements of weather are:
1. Precipitation - the water in any form that falls to the Earth from overhead clouds
2.Humidity - the moisture in the air of the lower atmosphere
3. Temperature - the measurement of how hot or cold a region is on a day-to-day basis
These basic elements, but also other (atmospheric pressure, meteorological phenomena) concern weather. 

i didn’t understand your question but archipelagos are groups of island hope this

Answer collision and mountain formation;