Water that evaporated from a tropical sea can later fall as snow over an Arctic landmass. This is because water vapor in Earth's atmosphere is moved around the
globe by air currents. The differences in temperature that caUse air currents are
created by

Which of the following best describes the formation of plasma?

Can someone me with questions 15 to 17 plz.

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?