Dolphins emit high frequency sounds which bounce off objects in their environment. these reflected sounds them to locate food, predators, and other dolphins. where have human beings used technology in a similar manner?

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).