A flood is an overflow of water that submerges land which is usually dry. The European Union (EU) Floods Directive defines a flood as a covering by water of land not normally covered by water.
A food chain is a linear series of links starting with one specific species that eats no other species in the web, and endling with a specific species that eaten by no other species in the web.That's different from a food web. For more information, please access the related link listed below.f there are six in the food chain it will go like this: 1  The sun gives energy to the green plant (this is called the producer) ie: grass, 2  the grass is then eaten by the rabbit (which is known as a primary consumer) and then. 3  the rabbit (called the secondary consumer) is then eaten by the fox (called the carnivore).
food chain. The transfer of food energy from producers (green plants) to primary consumers (herbivores) to secondary consumers (carnivores). Dead organisms of all kinds are reduced to simpler chemicals by decomposers (bacteria and fungi), which make minerals available again for green plants. See also: chain.