Please help ! Which sphere is not correctly matched? A. asthenosphere-all the molten rock inside the earth
B. atmosphere-all the gases of the earth
C. lithosphere-the earth's solid rock/crust
D. hydrosphere-the earth's water

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?