Final answer:
Match attributes with orbiting bodies: asteroids or comets vary in size, stars have a characteristic glow due to fusion, meteoroids usually burn in Earth's atmosphere, and stars are primarily made of hydrogen and helium.
Step-by-step explanation:
The question requires matching orbiting bodies to their attributes in a physics context. An orbiting body that varies greatly in size could refer to asteroids or comets as they come in a wide range of sizes. An attribute like has a characteristic glow is likely referring to stars, which glow due to nuclear fusion. Planets, like Jupiter, may also reflect light and therefore have a visible glow, but they are not the source of their own light. Bodies that are usually burns up if it enters earth's atmosphere are often small meteoroids that become meteors; when these burn up due to atmospheric entry, they can sometimes create a bright fireball if large enough. Finally, objects that are primarily made of hydrogen and helium are stars, including our Sun, since these two elements are the main components of stellar mass.