Final answer:
Grape vines for wine production are mainly planted between 30-50° latitude, which offers a temperate climate ideal for viticulture, as seen in renowned wine-producing regions such as California's Napa Valley and northern France.
Step-by-step explanation:
Grape vines for wine production are mainly planted between 30-50° latitude. These regions are not too hot or too cold and provide an optimal climate for viticulture, which is the cultivation of grapevines. Popular wine-producing regions like Napa Valley in California, the plains of northern France, and the region around the Mediterranean benefit from moderate temperatures and adequate rainfall, ideal for growing grapes.
Areas near the equator are generally too hot for grape growing, while regions between 15-30° latitude are typically arid and include deserts, which are not suitable for viticulture. On the other hand, regions between 50-70° latitude are often too cold for grape production. This makes the temperate climate zones the prime locations for cultivating wine grapes.