What is a result of the deflection of charged particles along the Van Allen belts?
O A. Declination
O B. Pole reversals
O C. Aurora borealis
O D. Convection in the mantle

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.