Co-Evolution

After water vapor condensed to form rain and then gradually accumulated, which of the following was formed?

• Earth's First Atmosphere
• Earth's Second Atmosphere
• Earth's Oceans
• Earth's Continents

According to scientists, both Earth and moon are...

• About 1.6 Billion Years Old
• About 4.6 Billion Years Old
• About 9.6 Billion Years Old
• About 14 Billion Years Old

Which gas was introduced by stromatolites and allowed for more complex life to exist on Earth?

• oxygen
• carbon dioxide
• sulfur oxides
• water vapor

This gas was in high concentrations in the early atmosphere, and later condensed to form Earth's oceans. 

• oxygen
• carbon dioxide
• sulfur oxides
• water vapor

If we wanted to model the introduction of oxygen to this model, where would it take place?

• from the atmosphere to the ocean
• from the ocean to the atmosphere
• from the sediment to the atmosphere
• from the ocean to the sediment

Tiny organisms known as Cyanobacteria conduct _______________: using sunshine, water and carbon dioxide to produce carbohydrates and oxygen.

• The greenhouse affect

• Experiments

• Photosynthesis

• Radiation

All living things on earth are part of the....

• Biosphere
• Geosphere
• Hydrosphere
• Cryosphere

The Geosphere is...

• All liquid water on Earth
• A 100km thick layer of gases
• frozen water on earth
• Earths entire solid body 

When carbon dioxide dissolves from the air into the ocean -the interaction is between

• the atmosphere and atmosphere
• the atmosphere and hydrosphere
• the atmosphere and geosphere
• the atmosphere and biosphere

Blue green algae; simple life that introduced oxygen (O2) to the atmosphere billions of years ago

• Outgassing

• Photosynthesis

• Cyanobacteria

• Carbon dioxide