noun, Ecology. 1. a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment. 2. any system or network of interconnecting and interacting parts, as in a business: The success of Appleâs ecosystem depends on hardware/software integration.
Two Types of Impact Craters. Impact craters can be categorized in one of two ways: simple or complex. A simple crater has a smooth bowl shape small with a small depth to diameter ratio. This ratio is typically 1:6 which means that if the crater is 1 m deep, it is 6 m wide.
GENERIC FEATURES. A volcanic vent is an opening exposed on the earth's surface where volcanic material is emitted. All volcanoes contain a central vent underlying the summit crater of the volcano.UBORDINATE VOLCANO TYPES -- Lava and tephra can erupt from vents other than these three main volcano types. A fissure eruption, for example, can generate huge volumes of basalt lava; however, this type of eruption is not associated with the construction of a volcanic edifice around a single central vent system.