Question

how do the planets form?
material from space was pulled into the sun’s orbit
fusion reactions in the sun created large masses that exploded out of the sun
gravity caused matter around the newly formed sun to collide and combine into large spheres
pressure from the sun attracted material towards the sun that then combined to form the planets

Explanation:

To determine how planets form, we analyze each option:

• Option 1: Material from space pulled into Sun’s orbit is too vague; planet formation involves matter around the Sun, not just random space material.
• Option 2: Fusion in the Sun creates energy, not masses that explode out to form planets.
• Option 3: The nebular theory states that after the Sun formed, gravity caused surrounding matter (gas, dust) to collide and accrete into larger bodies, eventually forming planets. This matches the scientific understanding.
• Option 4: Pressure from the Sun doesn’t attract material to form planets; gravity is the key force, and planets form around the Sun, not by material being attracted to the Sun to combine there.

Answer:

C. Gravity caused matter around the newly formed Sun to collide and combine into large spheres