Final answer:
The 'meal' from standing on a hot sidewalk is a metaphorical fried egg, a humorous riddle. Your weight would theoretically increase by a factor of 28 due to the sun's gravity. Nutritious meals at fast food restaurants require selective ordering.
Step-by-step explanation:
The 'meal' you can get from standing on a hot sidewalk is a playful reference to an 'omelete' or 'fried egg,' which describes the popular metaphor of an egg frying on a hot surface due to high temperatures - it's not a literal meal you can get. It is merely a humorous riddle suggesting that it's so hot outside that you could cook an egg on the sidewalk. When it comes to questions regarding weight increase if standing on the sun, this deals with physics and the concept of gravitational force. Your weight on the sun would increase by a factor determined by the sun's gravity compared to the Earth's gravity. The sun's gravitational pull is approximately 28 times stronger than Earth's, so theoretically, if you could stand on the sun, you would feel a weight increase by a factor of 28. However, this is purely hypothetical since the sun's intense heat and gaseous surface would make it impossible to stand on. Regarding fast food nutrition, it is possible to choose more nutritious meals at a fast food restaurant, but it requires selective ordering, such as opting for salads, grilled items, or smaller portions.