Question

how are van allen belts formed?

• high-energy particles from the sun get trapped in earth’s magnetic field.
• metals in earth’s core sink and rise, producing a circular movement of the metals.
• particles in solar wind travel along lines of earth’s magnetic field and collide with gas atoms.
• material from the surface of the sun erupts and forms a loop due to the sun’s magnetic field.

Explanation:

To determine how Van Allen belts are formed, we analyze each option:

• Option 1: High - energy particles from the Sun (like those in solar wind) are trapped by Earth’s magnetic field, which is the correct mechanism for Van Allen belt formation.
• Option 2: The movement of metals in Earth’s core is related to Earth’s magnetic field generation, not Van Allen belt formation.
• Option 3: Collision of solar wind particles with gas atoms causes auroras, not Van Allen belt formation.
• Option 4: This describes solar prominences (loops on the Sun’s surface), not Van Allen belts.

Answer:

A. High - energy particles from the Sun get trapped in Earth’s magnetic field.