The resource competition model of sympatric speciation requires: A. divergent/disruptive selection driving character displacement.
B. directional selection driving character displacement.
C. evolution of reproductive isolation.
D. A and C
E. B and C

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

option d : from a warmer substance to a cooler substance

according to second law of thermodynamic, heat flows from higher to lower temperature region. heat is the transfer of energy from an object at higher temperature to an object at a lower temperature. so energy flows from warmer to colder objects.