Unit 6 Meteorology Quiz Study Guide

History of Earth's Atmosphere Earth's early atmosphere formed over 4 billion years ago from gases from volcanoes. It was mostly made of nitrogen and carbon dioxide.Cyanobacteria formed around 2.7 billion years ago and changed the atmospheric carbon dioxide into oxygen.Earth's atmosphere today is mostly nitrogen and oxygen. Which gas in the stratosphere protects Earth by absorbing the Sun's dangerous UV radiation? carbon dioxide ozone nitrogen argon Which of the following are examples of condensation nuclei that water condenses around during cloud formation? dust, dirt, pollen, sand and smoke hail conduction lightning Pressure System Sort High Pressure System rising air clockwise sunny or clearing skies Low Pressure System sinking air counterclockwise cloudy skies Weather Fronts Fill out the table below about weather fronts. cold front stationary front warm front Symbol Weather During strong storms rain for many days gentle rain Weather After sunny, clearing skies, drier depends on how the front moves warmer and more humid What forms where air rises and cools in the atmosphere? air masses high pressure systems clouds thunder What causes the Coriolis Effect? the Moon's gravity Earth's round shape Earth's revolution Earth's rotation The Coriolis Effect pushes objects to the _ in the Northern Hemisphere and _ in the Southern Hemisphere. right, left left, right right, right left, left Convection: Warm Air vs. Cool Air Warm air rises because it is less dense. Cool air sinks because it is more dense. This is called convection. Air Mass Sort cT continental tropical warm and dry cP continental polar cool and dry mT maritime tropical warm and humid mP maritime polar cool and humid What gas to animals need to survive? nitrogen carbon dioxide methane oxygen What process creates clouds? conduction condensation evaporation radiation All weather occurs in the _. troposphere stratosphere mesosphere exosphere Heat Transfer Matching conduction direct contact radiation light waves convection hot gases moving to another area How Air Moves Air moves from high pressure to low pressure. This creates wind. Local Winds Fill out the table below. Local Wind Name Sea Breeze Land Breeze Image Time of Day day night Land gets hot and cold _ than water. faster slower at the same rate Wind and air masses are named by where they _. move to end up form