You are pushing a refrigerator across the floor of your kitchen. you exert a horizontal force of 303 n for 7.1 s, during which time the refrigerator moves a distance of 3.4 m at constant velocity.

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents