Africa (1) dry (Tropic of Capricorn, the whole southern continent north of Tropic of Capricorn; B the straight coastline and the lack of inland ports reduce the influence of the ocean; The northeast is close to the arid area of the Asian continent, and it is naturally dry due to the influence of the northeast trade wind. ② Warm (the solar altitude angle determined by latitude, the ground receives the above amount of solar radiation; B wide drying area and transparent air; A considerable area of downwind position, high temperature enhancement) 3 climate from north to corresponding.

South America is warm and humid, and it is mainly rainy in the south in summer (because there are a lot of rainy areas and corresponding small arid desert areas, it is the smallest desert in Central and South America on all continents), and the tropical climate is dominant (the continent is slightly triangular in width in the north and narrow in the south, and the widest is nearly 5 s, so the tropical climate is dominant, while the tropic of Capricorn in the south of the continent shrinks and almost sinks to 52 S, so the subtropical and temperate climate is extremely great.