In British English a receipt is a piece of paper that you get in a shop when you buy something, but in American English the more usual term for this is sales slip. I wrote her a receipt for the money.
Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. Examples of such habitats would include newly exposed or deposited surfaces, such as landslips, volcanic lava and debris, elevated sand banks and dunes, quarried rock faces.
For instance, a new community of forest trees introduces shade to its ecosystem, or a previous community of vegetation that changed the fertility of the soil. Succession may arise from the formation of new, unoccupied habitat (e.g. a lava flow or a severe landslide).This kind of succession in which the sequential development of plant or animal communities in an area where no soil initially exists is called primary succession.Succession may also be initiated by a disturbance of an existing community (e.g. fire, severe windthrow, logging).This kind of succession where communities develop in areas where soil already exists is called secondary succession.or instance, a new community of forest trees introduces shade to its ecosystem, or a previous community of vegetation that changed the fertility of the soil. Succession may arise from the formation of new, unoccupied habitat (e.g. a lava flow or a severe landslide).