Can someone help me please? :/ Regular eclipses of the Sun and the Moon are best explained by which of the following?

1: The movement of Earth and the Moon around the Sun

2: The relative masses of the Sun, Earth, and the Moon

3: The different compositions of the Sun and the Moon

4: The rotation of Earth and the Moon on their axes

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

Which atomic model was proposed as a result of j. j. thomson’s work?

How do we measure or think of speed in the united states?