Earth's Early Atmosphere

Front

This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans. Options: oxygen, carbon dioxide, sulfur oxides, water vapor

Back

water vapor

Front

This gas was in high concentrations in the developing atmospheres and later dissolved into rainwater, added to the oceans, then settled to the bottom of the ocean. Options: oxygen, carbon dioxide, argon, water vapor

Back

carbon dioxide

Front

What were the main ingredients that caused heat energy to be trapped, creating a greenhouse effect, in the early atmosphere?

Back

water and carbon dioxide

Front

How much oxygen do we have in earth’s atmosphere?

Back

20.9%

Front

What is the percentage of nitrogen in Earth's atmosphere?

Back

78%

Front

What produced oxygen within the early stages of our atmosphere? Options: Plants, Volcanos, Galactic Debris, Bacteria

Back

Bacteria

Front

This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans. Options: oxygen, carbon dioxide, sulfur oxides, water vapour

Back

water vapour

Front

What happened to the carbon dioxide that was dissolved in the early oceans?

Back

It turned into sediment

Front

Why is Earth's atmosphere important?

Back

Life on Earth could not exist without it.

Front

According to scientists, both Earth and moon are...
Options: About 1.6 Billion Years Old, About 4.6 Billion Years Old, About 9.6 Billion Years Old, About 14 Billion Years Old

Back

About 4.6 Billion Years Old