What is the difference between lycopodium and equisetum

Lycopodium is a family of fern-allies . They are mostly a flowerless plants with widely branched, with little and simple, needle-like like leaves that cover the branches thickly and stem while Equisetum  usually called horsetail, snake grass because it more like a tail of a horse and its the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

helicase, i think thats it