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What is the difference between Earth's current atmosphere and its atmosphere in the past that allowed dragonflies to become much larger?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Which part of Earth's structure exists in the solid phase due to low temperatures?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Which property of Earth's interior keeps the innermost part in a solid state?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Scientists believe that nuclear fusion within stars creates elements, including those heavier than lithium. How did these elements appear on Earth?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Which of the following may form when carbon from decayed organic matter is buried in the right geological conditions?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Which of the following sources of energy drives the movement of carbon from biological reservoirs in organic matter to chemical reservoirs in fossil fuels?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
When coal is burned, how long does it take for it to release carbon dioxide into the atmosphere?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
Which of the following BEST represents how oxygen first became prevalent in Earth's atmosphere?
tiny organisms used photosynthesis
high pressure
instantly
collapsing stars caused supernovas that scattered the elements throughout the universe
the lithosphere
heat and pressure from Earth's interior
fossil fuels
more oxygen in the atmosphere
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Match it!
Match it!