Development of Earth

Which statement best summarizes the source of most of the oxygen present in the atmosphere?

• Oxygen was released from deep within Earth's interior through volcanic eruptions

• Animals produced and emitted oxygen as a waste product of cellular respiration

• Cyanobacteria produced and emitted oxygen as a waste product of photosynthesis

• Primitive plants produced and emitted oxygen as a waste product of photosynthesis

What is the biggest difference between Earth's modern atmosphere and the atmosphere of Venus?

• Earth's atmosphere is primarily nitrogen and oxygen; Venus's atmosphere is primarily carbon dioxide and nitrogen

• Earth's atmosphere is primarily nitrogen and oxygen; Venus's atmosphere is primarily carbon dioxide and methane

• Earth's atmosphere is primarily carbon dioxide and oxygen; Venus's atmosphere is primarily carbon dioxide and nitrogen

• Earth's atmosphere is primarily carbon dioxide and oxygen; Venus's atmosphere is primarily carbon dioxide and methane

What caused Earth's interior to separate into distinct layers?

• composition

• density differences

• temperature difference

• all of the above

Tags

NGSS.HS-ESS2-3

What was the early atmosphere composed of?

• water vapor

• carbon dioxide

• hydrogen sulfide

• all of the above

Tags

NGSS.HS-ESS1-6

What was the composition of Earth's first atmosphere?

• nitrogen and oxygen

• nitrogen and carbon dioxide

• helium and hydrogen

• hydrogen and nitrogen

Tags

NGSS.HS-ESS1-6

Which of the following best describes the composition of Earth's early crust?

• iron rich

• silica rich

• nickel rich

• aluminum rich

Tags

NGSS.HS-ESS1-6

To which of the following do geologists primarily attribute the evolution of complex life forms on the planet?

• the formation of solid crust

• the formation of oceans

• the increase in atmospheric oxygen

• the increase in atmospheric carbon dioxide

Tags

NGSS.HS-LS4-5

What caused oxygen levels to increase in the early atmosphere?

• bacteria

• stromatolites

• volcanoes

• all of the above

Tags

NGSS.HS-ESS1-6

Which of the following was the most significant contributor to the formation of Earth's early atmosphere?

• residual gases from when the planet formed

• volcanic degassing

• photosynthetic organisms

• the decay of radiogenic isotopes

Tags

NGSS.HS-ESS1-6

One can conclude that Earth's internal layers resulted from which mechanism?

• differentiation

• the decay of radiogenic isotopes

• accretion

• bombardment