Science question please help

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Which substance can be broken down by chemical means