Which of the following accurately describes the climate of bolivia?
a. year-round tropical wet climate
b. ranges from relatively mild to extremes of cold and heat
c. ranges from humid and tropical to cold and semiarid
d. moderate temperatures with seasonal rainfall

The correct answer is C. The climate of Bolivia ranges from humid and tropical to cold and semiarid.

Explanation:

Bolivia's climate varies widely between ecoregions, from tropical conditions in the eastern plains to a polar climate in the western Andes. The summers are hot, humid in the east and dry in the west with rains that change the temperature, humidity, wind, atmospheric pressure, and evaporation, giving rise to different climates. When the climatological and erratically cyclic phenomenon called El Niño arises, it causes great changes in the climate. The winters in the west are quite cold and have snow in the vicinity of the mountains, while the lowlands tend to have windy days. Autumn is dry in non-tropical regions.

Moraine is sediment deposited by a glacier.