3. Two metal spheres are mounted on Insulating stands. Sphere X is initially uncharged and sphere Y is initially positively charged.
A motal road, held by an insulating handle, is placed in contact with X and Y as shown.
Insulating handle

What are the charges on X and Y after the rod is placed in contact with them?
Charge on X Charge on Y
A
positive
positive
B
positive
uncharged
C
uncharged
positive
D
uncharged
uncharged

b would be the answer

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.