the accumulation of water vapor, carbon dioxide, and nitrogen in earths early atmosphere approximately 4…

the accumulation of water vapor, carbon dioxide, and nitrogen in earths early atmosphere approximately 4 billion years ago resulted mainly from\n1 outgassing from earths interior\n2 radioactive decay\n3 photosynthesis by the earliest land plants\n4 convection currents in earths outer core

the accumulation of water vapor, carbon dioxide, and nitrogen in earths early atmosphere approximately 4 billion years ago resulted mainly from\n1 outgassing from earths interior\n2 radioactive decay\n3 photosynthesis by the earliest land plants\n4 convection currents in earths outer core

Answer

Brief Explanations:

  • Outgassing from Earth's interior: Volcanic activity released gases like water vapor, carbon dioxide, and nitrogen into the atmosphere.
  • Radioactive decay: Mainly produces heat, not these gases in significant amounts for early atmosphere accumulation.
  • Photosynthesis by earliest land plants: Occurred much later in Earth's history (after the early atmosphere formation).
  • Convection currents in Earth's outer core: Related to magnetic field generation, not gas accumulation in the atmosphere.

Answer:

  1. outgassing from Earth’s interior