I believe the answer is E. d41 because it goes a11, A12, b21, B22, c31, C32, then it goes lowercase d41 and then the next one is going to upper case D42.
Hope this helps.
Because the earth is tilted on a axis and tilts differently to get the 4 different seasons
The moon's volatile elements evaporate early in the moons history do to violent impact.
The answer is A) Birth rate
Depending on the type of storm, warm and stationary fronts are more associated with rain fog and snow, cold fronts are more associated with lightning and tornadoes