What does the Earths revolution determine?

What is Mexico's longest river? What does dancing represent? What Carnivores live in a pond? Which organ of the body benefits from silicon? Why might blue light cause emission of electrons from metal while red light does not? What will happen to a houseplant if you water it with salt water? What was the chemical element uranium named after what planet? What continent is located 60N 20E? What is the difference between 'cased hole log' and 'open hole log'? Which of the following are events is shown by the shaded part of the map below? What are the name of cold acid fast stain? How many miles equals 500 kilometer? How do you change LIQUID GOLD into SOLID GOLD? Description of the sunrise and sunset in the cloud by pb Shelley? What does chemical and physical weathering have in common? What factor did Newton take into account that Kepler missed in his laws of planetary motion? What is the life of a coffee grower? What happens when the internal balance of human body systems is disrupted? If something has a density of one will it sink or float? Why can black holes not be seen?