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.
Humerus. 1  The humerus is the bone of the upper arm extending from the shoulder to the elbow. 2  This long bone is essential for movement and support of the arm (upper extremity). 3  The humerus exists on both arms and thus accounts for 2 bones of the human body.adius. 1  The radius is the bone of the forearm or lower arm, extending from the elbow to the wrist. 2  This bone is relatively long and curved, extending parallel to the ulna. 3  Like the humerus, the radius' primary function includes motion of the arm and support of the arm.