Answer:
The black hole in the nucleus of the Milky Way Galaxy could not be the remnant of a single dead star.
Explanation:
The very center of the galaxy is known as the nucleus of the galaxy. The nucleus of the galaxy is hidden due to the dust particles present in the galaxy, which eventually covers the light of the nucleus.
The nucleus of the galaxy is filled with numerous stars and dust and the radiation emitted by them. The black hole lies at the center of the galaxy.
<u>These super-massive black holes could not be the remnant of a single dead star because these holes are very large.</u>
So, the correct answer is no.
The ground-level ozone is a harmful air pollutant that can be a danger to one's health. It is commonly created by chemical between oxides and nitrogen. Similar to ground-level ozone, smog can also be a danger to one's health, especially to the lungs. It is a mixed smoke and fog.
Regular answer:
Pure water
scientific answers:
hydrogen hydroxide
H2O
di-hydrogen oxide
Biotic factors are organisms that interact with non-living & living parts of an ecosystem.
Egs. badgers, worms, fungi, bacteria, insects.