Why is sunlight most intense in the summer? (Check all that apply.) a. In the summer, the sun is higher in the sky on average, and the sunlight is more direct. b. In the summer, the sunlight passes through less atmosphere and less of it is absorbed. c. The sun burns a little hotter in the summer. d. The earth is closer to the sun in the summer. e. The air is thinner in the summer and blocks less sunlight..