Earth's Turbulent History Quiz

• The freezing over of Earth several times
• The fusion of hydrogen and helium
• The collision of multiple galaxies
• The collapse of a dense cloud of interstellar gas and dust (correct)

• The Earth was ruled by crazy life forms
• Matter began to clump together to form planets and moons (correct)
• The Earth collided with other planets
• The Earth was frozen over

• The ruling of crazy life forms
• The collision of asteroids
• The increasing heat in the swirling disc of matter (correct)
• The freezing over of Earth

<p>Accumulation of more matter (D)</p> Signup and view all the answers

<p>About four and a half billion years old (D)</p> Signup and view all the answers