[DOC] [TLE] Atmospheric Structure [PAR] All weather phenomena occur within the troposphere, although turbulence may ... 
Its height also varies with the seasons; highest in the summer and lowest in the 
winter. ... The ozone layer is centered at an altitude between 10-15 miles (15-25 
km). ... The exosphere is the most distant atmospheric region from Earth's surface
. [DOC] [TLE] Layers of Earth's Atmosphere | UCAR Center for Science Education [PAR] Starting at ground level, it extends upward to about 10 km (6.2 miles or about 
33,000 feet) ... We humans live in the troposphere, and nearly all weather occurs 
in this lowest layer. Most clouds appear here, mainly because 99% of the water 
vapor in the ... That trend of rising temperatures with altitude means that air in the
... [DOC] [TLE] Some questions on Atmosphere - WikiEducator [PAR] Feb 17, 2015 ... Q. How much of the earth's air is found in the atmosphere inner most layer (
troposphere) ... extend beyond the lowest the region of atmosphere ie.
troposphere? ... It happens when a layer of cold air is trapped by warmer upper 
air mass. ... in mesosphere which extends from 50 km to an altitude of 80 km ? [DOC] [TLE] Atmosphere - The Ozone Hole [PAR] Earth's atmosphere is 78% nitrogen, 21% oxygen, and 1% other gases. ... surface 
and emit radiation from much higher and colder levels out to space. ... Weather 
occurs in this layer. ... the troposphere (and it extends from the surface up to 
about 10 km (6 miles). ... The gas becomes increasingly rarefied at higher 
altitudes. [DOC] [TLE] Layers of Earth's Atmosphere [PAR] up to 16 km (10 miles) ... lights) occurs in this layer. This is ... Earth's atmosphere 
extends hundreds of kilometers above the surface. It is relatively dense at sea 
level ... The troposphere is where most weather processes take place. ... At 
higher altitudes, the thin atmosphere and harsh conditions are inhospitable to 
most living. [DOC] [TLE] Earth's Atmosphere - Zoom Astronomy - Enchanted Learning [PAR] The Earth's atmosphere is about 300 miles (480 km) thick, but most of the 
atmosphere ... At an altitude of 10,000 feet, the air pressure is 10 pound per 
square inch (and ... The stratosphere extends between 11 and 31 miles (17 to 50 
kilometers) above the earth's surface. ... The weather and clouds occur in the 
troposphere. [DOC] [TLE] Layers of the Atmosphere [PAR] Based on temperature, the atmosphere is divided into four layers: ... This is the 
layer of the atmosphere closest to the Earth's surface, extending up to about 10-
15 km above the ... Most of what we call weather occurs in the troposphere. ... is a 
cold layer where the temperature generally decreases with increasing altitude. [DOC] [TLE] Earth's Atmospheric Layers | NASA [PAR] Diagram of the layers within Earth's atmosphere. ... at the Earth's surface and 
extends 8 to 14.5 kilometers high (5 to 9 miles). ... Aurora and satellites occur in 
this layer. ... level records tend to be located where 20th century sea level rise 
was most ..... Oct. 10, 2016 - NASA Gets a Last Look at Post-Tropical Cyclone 
Matthew... [DOC] [TLE] troposphere [PAR] The troposphere is wider at the equator (10mi) than at the poles (5mi). The 
troposphere contains 75 percent of atmosphere's mass- on an average day ... 
Most prevalent gases are nitrogen (78 percent) and oxygen (21 percent), with ... 
Temperature and water vapor content in the troposphere decrease rapidly with 
altitude. [DOC] [TLE] Earth's Atmosphere: Composition, Climate & Weather - Space.com [PAR] Sep 19, 2012 ... Earth is the only planet in the solar system with an atmosphere that can sustain 
life. ... kilometers) thick, but most of it is within 10 miles (16 km) the surface. ... At 
sea level, air pressure is about 14.7 pounds per square inch (1 ... The 
mesosphere starts at 31 miles (50 km) and extends to

Question: Most weather occurs in this lowest level of the atmosphere, which extends to an altitude of 6 to 10 miles
Answer: the troposphere