A forest fire that was caused by lightning
Generally geyser field sites are located near active volcanic areas
An important function of seed dormancy is delayed germination, which allows dispersal and prevents simultaneous germination of all seeds. ... Many species of plants have seeds that delay germination for many months or years, and some seeds can remain in the soil seed bank for more than 50 years before germination.
The more advance the community the more complex the speciess
The only way for gases to diffuse in and out of the leaf is though small openings on the underside of the leaf, the stomata