The Atmosphere, Oceans, and Early Life on Earth
Exploring Earth's Early Atmosphere and Life
Test your knowledge about the early atmosphere, oceans, and life on Earth with this comprehensive quiz! Dive into the fascinating processes that shaped our planet and understand how volcanic activity, cyanobacteria, and more played crucial roles in Earth's development.
In this quiz, you will cover:
- The role of volcanic eruptions
- The significance of cyanobacteria
- The characteristics of Earth's early atmosphere
- Key hypotheses about the origin of life
What does volcanic eruptions release?
Water vapor, carbon dioxide, and trace amounts of nitrogen and other gases
Large quantities of carbon dioxide
There were only negligible amounts of free oxygen in Earth’s atmosphere until the early Proterozoic.
True
False
Stromatolites dominated the shallow seas that at that time covered most of Earth’s continents
False
True
By the beginning of the Proterozoic, cyanobacteria decreased oxygen gas levels enough
False
True
How many hypothesis are there?
4
7
2
3
What was the hypothesis of Earth's surface?
Life originated in hydrothermal vents deep in the oceans.
Life originated on Earth’s surface in warm, shallow oceans.
Organic molecules were brought to Earth in asteroids or comets.
What was the evidence for deep earth?
Simulations produce amino acids.
Simulations of deep-sea vents of deep sea produce amino acids.
Earth’s early atmosphere probably contained the same gases that vent from volcanoes today.
True
False
Volcanic eruptions release large quantities of gases, and there was considerable volcanic activity during the Precambrian.
False
True
By the beginning of the Proterozoic, cyanobacteria increased oxygen gas levels enough so that iron oxides began to form in localized areas.
True
False
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