Which of the following expressions gives units of kg. m2/s2? a. m2.Ax/(At)2
b. m.(Ax)2/At
c. m.(Ax)2/(At)2
d. (At)2/m.(Ax)2

The rocks expand when there hot/warm  and contract when they are cold.

Because the sun is the biggest and if the sun orbits the earth we will be dead probably

Is there any opitions? if you have the periodic table, the noble gases are 8a family, the halogen are the 7a family, and the nonmetal are  carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, fluorine, chlorine, bromine, iodine and astatine.

The sun's gravitational pull is weaker on the planets that are closer to it, i think.