What is a magnetosphere?

a. the layer of a planet in which its magnetic field is generated

b. a region of space around a planet in which the planet's magnetic field can trap charged particles

c. the uppermost layer of any planetary atmosphere

d. the region in a planet's atmosphere where aurorae occur?

Respuesta :

A magnetosphere is the region of space surrounding an astronomical object in which charged particles are controlled by that object's magnetic field. The magnetic field near the surface of many astronomical objects resembles that of a dipole.