1. The giant cloud that could have formed the solar system contained which of these materials?
A: liquid water and ice
B: oxygen and carbon dioxide
C: oxygen and hydrogen
D: hydrogen and helium
Nvm I found the answer.
To determine which of these materials could have been present in the giant cloud that formed the solar system, we can look at the process of solar system formation.
The solar system is believed to have formed about 4.6 billion years ago from a giant molecular cloud, also known as a nebula. This cloud was primarily composed of gas and dust. As the cloud collapsed under its own gravity, it began to spin and flatten into a disk-shaped structure called the protoplanetary disk.
Within this protoplanetary disk, various elements and compounds were present. Most of the mass was in the form of hydrogen and helium, as these are the most abundant elements in the universe. In addition to hydrogen and helium, other elements and compounds could also be present depending on the specific conditions within the cloud.
However, among the options given, the most likely materials to have been present in the giant cloud that formed the solar system are hydrogen and helium. Option D: hydrogen and helium, is therefore the correct choice.