In a circuit, 0.40A of current go through a lightbulb in 50s. What is the amount of charge passing through the lightbulb?

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