Science Q4

• Vulcano a volcanic island in the aeolian islands italy.
• Vulcan the god of fire in roman mythology.
• Magma molten rock beneath earth's surface. it is from a volcano that solidifies as it cools.
• Sill a flat piece of rock formed when magma hardens in a crack in a volcano.
• Parasitic cone a small cone-shaped volcano formed by an accumulation of volcanic debris.
• Flank the side of a volcano.
• Vent an opening in Earth's surface through which volcanic materials escape.
• Lava molten rock that erupt.
• Crater mouth of a volcano surrounds a volcanic vent.
• Conduit an underground passage magma travels through.
• Summit highest point: apex.
• Throat entrance of a volcano. that part of conduit that ejects lava and volcanic ash.
• Ash fragments of lava or rock smaller than 2mm in size that are blasted into the air by volcanic eruptions.
• Ash cloud a cloud of ash formed by volcanic eruptions.
• Hotspot usually in hot regions in earth's mantle due to high temperature.
• Fissure volcano is a volcanic vent through which lava erupts without explosive activity.
• Cinder volcano a volcano with steep conical hill of volcanic debris and bowl-shaped crater.
• Composite volcano is a majestic volcano, tall, symmetrically shaped volcano with steep sides of about 3,048 meters high.
• Shield volcano is a mountain with broad, gently sloping sides and nearly circular base.
• Active volcano volcanoes are presently erupting until today.
• Dormant volcano may have capacity to erupt later on.
• about 1,500 volcanoes recorded for the past 20,000 years
• 800 active volcanoes today.
• Cinder cone also called "scoria cone" simples' type of volcano in this world.
• Composite Volcano also called stratovolcano.
• Shield volcano broad, gently eloping landform built by many layers of low viscous lava.
• Volcanic dome also called as lava dome.
• Super volcano produce the largest eruptions on earth.
• VEI volcanic explositivty index.
• Christoper G. Newhall created the VEI.
• DRE or dense Rock
• Sub-Marine volcanoes created when magma erupts in the underwater fissures of the earth.
• Pillow lava in it is formed in shallow water that eject basaltic magma and lava.
• Sub-Glacial volcanoes also called glaciovolcano.
• Climate is the change of all-weather condition of an area over a long period of time.
• Latitude the geographic coordinate that specifies the north-south position of a point on the surface of the earth.
• Three general climate zones with respect to latitude are Artic, Tropic (hot) climate, and temperate.
• Ocean currents covering about 71% of the earth and with a capacity to (do) absorb about twice as much of the sun radiation.
• Three main processes that make ocean circulation: Tidal forces, Wind stress, and density.
• Two circulation types of ocean currents: Wind-driven circulation, and thermohaline circulation.