The matching bolt and nut grades identifying markings are designated differently to demonstrate the strength relationship of the two components. Due to the advent of mass assembly it is an acceptable practice for the matching nut to be the stronger component.
Answers. Best Answer: The altitude and therefore, the temperature, together with the age of the cloud, decides if it is made of ice crystals, water droplets or, both. High clouds only made of ice crystals are called cirrus clouds. Those are the left-overs of strong convection bringing moisture all the way to the tropopause, which is the top of the troposphere. Sometimes, cirrus even escape from the troposphere into the stratosphere.
Cirrus clouds are very high in the atmosphere where the air is very cold. These clouds of ice crystals are usually associated with fair weather, but may sometimes indicate that storms are on their way. Cirrostratus Clouds -. Cirrostratus clouds are milky, white-veined clouds that produce a halo around the sun or moon.