Final answer:
The Tropic of Cancer and the Tropic of Capricorn receive the highest angle and most direct sunlight during their respective summer solstices.
Step-by-step explanation:
The latitudes on Earth's surface that receive direct, highest angle insolation are the Tropic of Cancer at 23.5 degrees north of the equator and the Tropic of Capricorn at 23.5 degrees south of the equator. During the Northern Hemisphere's summer solstice, which occurs on or about June 21, the Sun shines most directly upon the Tropic of Cancer. Similarly, during the Southern Hemisphere's summer solstice, the Tropic of Capricorn receives the most direct sunlight. These tropics mark the farthest points north and south of the equator where the sun can be directly overhead at noon.