Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
It’s the source of all the energy from all the stars ... until their fuel is used up
No new substance is produced.
B)Facilitated diffusion is a form of active transport. Regular diffusion is a form of passive transport.