Six million years ago, hominids had compared to present-day hominids. a. larger teeth and jaws b. stronger bones and teeth c. smaller jaws and hands

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).