Which of these events is most likely to occur due to the interaction between Earth's magnetic field and charged particles blowing away from the sun?

a. gravity in space decreases

b. auroras are visible at the poles

c. the magnetosphere becomes stronger

d. microgravity is experienced by astronauts

The most likely event to occur due to the interaction between the Earth's magnetic field and charged particles blowing away from the sun would be "B. auroras are visible at the poles". The auroras form when when charged particles which are emitted from the sun enter the Earth's magnetic shield and collide with atoms in our atmosphere.