[ 153 ] Earth and Space Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 520 km 500 km 490 km –10 –50 0 50 100 150 200 500/1,500 Temperature ºC Troposphere Stratosphere Mesosphere Thermosphere Exosphere Altitude 160 km 140 km 120 km 100 km 80 km 60 km 40 km 20 km The stratosphere is the second layer of the atmosphere and is known for having stratified layers of temperature. How far up is this layer? Carbon is found in which of the following items? A. oceans, in the form of bicarbonate ions (HCO 3 – ) B. living organisms C. fossil fuels such as coal, oil, and natural gas D. all the above