The mutualism I believe. So sorry if I’m wrong
Answer with Explanation:
We are given that


a.We have to find the torque on the particle about the origin.
We know that
Torque=
By using the formula

b.



Substitute the values then we get



Because 

Answer:
B
Explanation:
Sunlight comes in the form of light energy. Upon striking the solar panels, it converts the light energy into electrical energy so as to run throughout the circuits. Then since it's used to power light, the electrical energy will be converted back into light energy
Movement can be without change in positions. As only a part of it can be made to move. If you move there is a motion and if there is a motion there is a movement so they're same thing. In motion whole of body moves, but in movements only the parts of body moves.