If you are sitting in a train, looking out the window, and you see another train pass, what is your frame of reference to tell which train is moving

answer; i believe the correct answer is (replication is not conservative);

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).