Mt1 100% Solutions Question And Answer

mt1 100% SOLUTIONS QUESTION AND ANSWER The atmosphere is composed of ___ % oxygen. 1 78 21 - ANSWER 21 If the volume of a given air mass is increased its density will ______ Increase Decrease - ANSWER decrease If the temperature is held constant and the pressure of the air is increased, its density will ______ Increase Decrease - ANSWER increase A parcel of air with the same volume at _________ is more dense than the other. Sea Level 20,000 feet - ANSWER sea level If the pressure is held constant and the temperature is increased, the density of air will ______ Decrease Increase - ANSWER decrease One NM equals approximately ____SM, 6080 feet, or ____ minute(s) of arc of a great circle. 1.15; 1 1.15; 60 .85; 1 - ANSWER 1.15;1 The standard sea-level pressure is _____mb (hPa). - ANSWER 1013.25 The standard sea-level pressure is _____inches of Hg. - ANSWER 29.92 duh _____% of the atmosphere's mass lies below 18,000 feet. 50 10 90 - ANSWER 50 Most weather phenomenon occurs in the _____. Mesosphere Tropopause Troposphere - ANSWER troposphere In the lower troposphere, pressure decreases about ___ inch Hg per 1,000 feet of altitude. 2.0 1.0 0.1 .5 - ANSWER 1.0 The average height of the tropopause in the middle latitudes is about _____feet. 40,000 36,000 56,000 26,000 - ANSWER 36000 The standard lapse rate in the troposphere is___°C/1000 feet. 1.98 3.0 3.6 4.4 - ANSWER 1.98