ASTR 151 1st Edition Lecture 12 Outline of Last Lecture I Review for First Exam Outline of Current Lecture II Chapter 7 Structure of Earth III Chapter 7 Atmosphere of Earth Current Lecture I II Chapter 7 Section 1 Structure of Earth a Earth i Mass 6 10 24kg ii Radius 6 371 000m iii Density 5500kg m 3 b Earth has i Mantle ii 2 part core iii Thin crust iv Hydrosphere v Atmosphere vi Magnetosphere vii Troposphere 1 Responsible for weather Chapter 7 Section 2 Atmosphere of Earth a Weather is the result of convection i Cool air goes down while warm air goes up b Ionosphere i Ionized particles block solar radiation ii Good conductor c Chlorine i Reacts to the ozone layer d Surface heating i Sunlight that isn t reflected by Earth s surface warming it is absorbed e Greenhouse effect i Without it Earth s temperature would drop to an average of 23 degrees These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute f Why do we have a blue sky i Oxygen absorbs wavelength at the UV spectrum
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