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Early in Earth's history, the atmosphere was composed predominantly of gases like carbon dioxide, methane, ammonia, and water vapor. These gases created a thick, cloud-like layer, which contributed to a greenhouse effect, trapping heat and allowing the planet to maintain a warmer temperature. Over time, photosynthetic organisms, particularly cyanobacteria, began to produce oxygen, leading to a significant transformation of the atmosphere. This shift ultimately paved the way for the development of aerobic life forms.
What else can I help you with?
How much area of earth is covered by water?
Approximately 71% of the Earth's surface is covered by water.
How much of earth is covered by land?
30.2% of Earth is covered by land
How much of the earth is covered by the hydrosphere?
71% of the earth is covered in Hydrosphere.
Which planet is covered in mostly water?
Earth. Over 70% of Earth's surface is covered by water.
What are three ways in which Venus differs from Earth?
1. Size 2. Distance from the Sun 3. Earth is not covered in extremely hot and deadly poisonous clouds of acid gas.
Part of earth covered by water?
3/4 of the Earth is covered by water.
What is the surface of earth's covered mostly of?
The surface of earth is covered mostly by water.
How much of the earth's surface is covered by Hydrosphere?
71% of the earth is covered in Hydrosphere.
What percentage of the earth is covered by deserts?
About 33% of the land area of the earth is covered by deserts.
What percent of the Earth is covered by ice?
Approximately 10 of the Earth's surface is covered by ice.
The oceans cover about what percentage of earth?
75 percent of earth is covered by oceans
What percentage of Earth is covered by beaches?
well 75% of the earth is covered with water so figure it out from there. you have a 25% chance.
