Winter
It is winter because the Northern Hemisphere is not facing the sun.
Answer:
Explanation:
Given
Charge of first Particle 
Charge of second Particle 
distance between them 

magnetic field due to first charge at mid-way between two charged particles is



(away from it)
Electric field due to 


(towards it)

(away from first charge)
higher temp = higher energy = higher frequency = shorter wavelength
Answer:
A. The sum of all the forces acting on an object.