Later some non-science person thought that the gas floated to the top of the atmosphere to form a layer like the glass in a greenhouse. The popular view is that the atmosphere has some sort of layer of carbon dioxide up there that reflects heat back down to Earth rather than letting it escape to space.
The function of the human arm is to be able to reach objects with your hands.he function of the arm in the microscope is to support the tube  and connects it to the base. It is also use to transport the  microscope from place to place. 2 people found this useful. Edit.
Each of the organisms possesses a humerus (upper arm in humans), radius and ulna (both comprising the forearm in humans), carpals and metacarpals (the human wrist bones) and phalanges (human fingers).The main difference between the organisms are the uses of the appendage and the size and number of certain bones.The human arm is used for a variety of functions while the lizard s and the cat s are used for walking an climbing, the whale s for swimming, the frog s for support and the bird s and the bat s for flying.he main difference between the organisms are the uses of the appendage and the size and number of certain bones. The human arm is used for a variety of functions while the lizard s and the cat s are used for walking an climbing, the whale s for swimming, the frog s for support and the bird s and the bat s for flying.