Answer:
<u>a. Planets fall into two major categories.</u>
<u>b. The Sun generates energy through fusion of hydrogen into helium.</u>
<u>c. The solar nebula collapsed due to gravity.</u>
<u>d. There are vast numbers of asteroids and comets.</u>
Explanation:
- The four key features if the solar system are given as above and as they have led to the formation of the solar system.
- Most of the planets fall into two categories that are gaseous giants and the other terrestrial planets. As the effects of the solar winds from the solar chromosphere.
- The sun itself is running on the fusion of hydrogen and helium elements in its core and thus is fueled by this energy.
- The solar nebula was a cloud of dust and gases that itself began to spin and the small particles under the gravity were pulled closer.
- There are about 100 billion comets and asteroids in the solar system,
The coastal plains of south of the atacama desert.
