Coral and sea anemones are both
a. sponges.
b. flatworms.
c. cnidarians.
d. roundworms.

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).

not sure if this is what you'r looking for eubacteria and archaebacteria