The Early Earth's Atmosphere

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During the first billion years of the Earth's existence, what caused the release of large quantities of carbon dioxide?

Intense volcanic activity (correct)

Photosynthesis

Evolution of photosynthesizing plants

Oxygen accumulation

What resulted in the formation of oceans on Earth?

Evolution of photosynthesizing plants

Photosynthesis

Release of nitrogen

Condensation of water vapor (correct)

What process underpinned the increase in the atmospheric concentration of oxygen?

Photosynthesis (correct)

Evolution of photosynthesizing plants

Intense volcanic activity

Release of nitrogen

What led to the ever-increasing rate of oxygen accumulation in the atmosphere?

Evolution of photosynthesizing plants Signup and view all the answers

What was the result of reaching a threshold concentration of oxygen in the atmosphere?

Formation of oceans Signup and view all the answers

During the early years of the Earth's existence, what two gases were released into the atmosphere by highly active volcanoes?

Carbon dioxide and water vapor Signup and view all the answers

What process led to the formation of oceans on Earth?

Condensation of water vapor Signup and view all the answers

What is the main source of energy for photosynthesis?

Light energy Signup and view all the answers

What led to the ever-increasing rate of oxygen accumulation in the atmosphere?

Photosynthesizing plants Signup and view all the answers

What happened when a threshold concentration of oxygen was reached in the atmosphere?

Carbon dioxide was removed from the atmosphere Signup and view all the answers

The Early Earth's Atmosphere

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Questions and Answers

During the first billion years of the Earth's existence, what caused the release of large quantities of carbon dioxide?

What resulted in the formation of oceans on Earth?

What process underpinned the increase in the atmospheric concentration of oxygen?

What led to the ever-increasing rate of oxygen accumulation in the atmosphere?

What was the result of reaching a threshold concentration of oxygen in the atmosphere?

During the early years of the Earth's existence, what two gases were released into the atmosphere by highly active volcanoes?

What process led to the formation of oceans on Earth?

What is the main source of energy for photosynthesis?

What led to the ever-increasing rate of oxygen accumulation in the atmosphere?

What happened when a threshold concentration of oxygen was reached in the atmosphere?

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