Multiple choice general knowledge science & technology

The double planet, or condensation hypothesis, claimed that the moon:

  1. was fully formed and captured by the Earth's gravity as it wandered by

  2. formed with the Earth at about the same time

  3. formed when the young Earth spun so rapidly on its axis that a blob of molten Earth spun off

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The condensation hypothesis suggests the moon and Earth formed together from the same material in the solar nebula around 4.5 billion years ago. Option A describes the capture hypothesis, and C describes the fission hypothesis. The double planet theory refers to simultaneous formation.