Annual temperatures in north america typically reach their maximum at the end of july, and not during the june 21st solstice when insolation is greatest. why is there this "lag" of more than a month between maximum insolation and maximum air temperatures?

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons