Why does Calgary receive more precipitation in the summer months?

The elevation changes in mountains and foothills are the "ingredients" needed for thunderstorm development which adds to rainfall totals. Finally, as temperatures rise during June, daytime heating creates early afternoon clouds which can lead to late day showers or thunderstorms.

the answer is:

c. islam and christianity

explanation:

islam and christianity are widely practiced in africa. islam is practiced due to its spread from the middle east into africa, and christianity is practiced due to the colonization of africa by the british empire.