The correct option is D. Volcanic eruption released large amounts of water vapor into Earth's early atmosphere.
Earth’s first atmosphere had lots of water vapor but it almost lacked oxygen. Eventually, frequent volcanic eruptions put several different gases into the air. These gases created a new type of atmosphere for Earth. The volcanic eruptions spewed gases such as nitrogen, carbon dioxide, hydrogen, and water vapor into the atmosphere, but no free oxygen. Without oxygen, there could not be life on Earth.
Answer:
The malcontents were a group of people who came after the original settlers came. They came without help from the trustees so they didn't have the same loyalty as the other settlers did. They didn't like the rules that were put in place by the trustees, that's why they are called malcontents.
Not to use poisonous gases for that was an inhumane way to die, cause who wants their lungs melted while still inside their body
