How can the combined effect of altitude and latitude appear in the climate of a place?

Correct answer: Even at low latitude altitude can cause coolness

The direct answer is A: even at a low latitude, high altitude can make a place cool. Latitude affects the amount and angle of sunlight: lower latitudes generally receive stronger solar energy, while higher latitudes are generally cooler. Altitude has another effect: as elevation rises in the lower atmosphere, air pressure and temperature generally decrease. Therefore a mountain town near the equator can be cooler than a lowland place at the same latitude. Option A is correct because it combines the two influences without saying that one cancels the other completely. Option B is wrong because both altitude and latitude are important temperature controls. Option C is wrong because latitude means angular distance north or south of the Equator, not rainfall. Option D is wrong because altitude generally lowers temperature in the troposphere rather than always increasing it. Memory cue: “Latitude controls sun; altitude cools the air.”