Q. At 12 noon of December 21, you observe that you cast no shadow as you stand in bright sunlight. So you must be, somewhere near ________ 

Explanation by: Chandani

At 12 noon of December 21, you observe that you cast no shadow as you stand in bright sunlight. So you must be, somewhere near The Tropic of Capricorn. The Tropic of Capricorn is the circle marking the latitude 23.5° south where the sun is directly overhead at noon on December 21, the beginning of winter in the northern hemisphere.