Why plants going through photosynthesis a chemical change?

Does heat from the inner core and movement of tectonic plates produce seismic waves? What is the shortest riddle on earth? What two physics mistakes occur in a science-fiction movie that shows a distant explosion in outer space where you see and hear the explosion at the same time? When two protons and two neutrons combine to form 4He it is found that this helium nucleus is less massive than the sum of the four original particles used to construct it. What is the significance of? What are some cheap good quality Garmin GPS accessories? What is the fleshy product of a plant usually covering the seeds called? A short thick appendage that enables bacterium escherichia coil to attach to other surfaces is called? What coal could not be a solution to the oil problem because the burning of it was harmful to fish and threatened forests? What is the water volume of a container that is 15x24x12? What do a meteorologists use to determine climate of an area? What are terms used to describe rocks with large vs small particles? What's more beneficial a whole house generator or single gas generator? What is lymphoid hyperplasia in the nasopharynx? What do a venus fly trap smell with? Where is the hottest place in Britain t? What is the active ingredient in naval jelly? What drainage pattern is common in areas where bedrock criss-crossed by a series of joints and or faults? What is the imaginary lines called on the globe? What are starfish made up of? What South American country has the largest land area?