A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index, over time. The opposite of inflation is deflation. Inflation has affected many economies in various positive and negative ways.
forestry - the science of planting and caring for forests and the management of growing timber. undercut - a notch cut in the trunk of tree in order to determine the direction of its fall. biological science, biology - the science that studies living organisms. silviculture - the branch of forestry dealing with the development and care of forests. stool - (forestry) the stump of a tree that has been felled or headed for the production of saplings.
Botany is the scientific study of plantshow plants function, what they look like, how they are related to each other, where they grow, how people make use of plants, and how plants evolved.