What do supernova remnant and planetary nebulae have in common? Select the three correct answers.(2 points)
Responses
They are composed only of hydrogen and helium.
They are composed of matter from dying stars.
They emit non-visible radiation.
They contribute matter to interstellar space.
- They are composed of matter from dying stars.
- They emit non-visible radiation.
- They contribute matter to interstellar space.
The three correct answers are:
1. They are composed of matter from dying stars.
2. They emit non-visible radiation.
3. They contribute matter to interstellar space.
To determine the correct answers, let's break down the options one by one:
1. They are composed only of hydrogen and helium: This statement is not true for both supernova remnants and planetary nebulae. While hydrogen and helium are indeed present in these objects, they are not composed solely of these elements.
2. They are composed of matter from dying stars: This statement is correct for both supernova remnants and planetary nebulae. Both of these objects are formed from the matter of dying stars, although the mechanisms differ.
3. They emit non-visible radiation: This statement is partially correct. Supernova remnants are known to emit various types of radiation, including visible, infrared, and X-rays, making them visible in different wavelengths. On the other hand, planetary nebulae generally emit visible radiation, specifically in the form of colorful and glowing gas clouds.
4. They contribute matter to interstellar space: This statement is true for both supernova remnants and planetary nebulae. Both of these objects release matter into interstellar space, which can then be used to form new stars and planetary systems.
Based on these explanations, the correct answers are:
- They are composed of matter from dying stars.
- They contribute matter to interstellar space.