Labels:text | screenshot OCR: Structure of the atmosphere Exosphere (above 600 km) (373 miles) Thermosphere (up to 600 km) (373 miles) Mesosphere (up to 600 km) (373 miles) Stratosphere Ozone layer (up to 50 km) (reflects UV-radiation (31 miles) from the sun) Troposphere (10-20 km) (6.2 - 12.4 miles)