Measuring Your Draw Length. A good archery pro shop can find your draw length and help set you up with a bow that fits you. But sometimes even archery shops have a âthatâs close enoughâ mindset, and donât measure people properly. Thankfully, there are several easy ways that you can measure your draw length at home, with the help of a friend.
The different layers of the atmosphere. The atmosphere can be divided into layers based on its temperature, as shown in the figure below. These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere. A further region, beginning about 500 km above the Earth's surface, is called the exosphere.
This drawing shows the different layers of the atmosphere. The ground is shown in brown at the bottom of the picture. The altitude in kilometers is given on the right hand scale and is approximate. (Click for a larger image.) Â© UC Regents The Different Levels of the Atmosphere are: Troposphere: This is the lowest atmospheric layer and is about seven miles (11 km) thick.