a type of defense that assigns each defender to a particular area in front of or around his team's goal in which he is responsible for marking any attacker that enters; often used ...
A large-scale physical feature within the ecosystem. Reef zones are determined by currents, wave surge, exposure to sunlight and water depth, and may be comprised of a number of ...
A geographical area. A geological zone, however, means an interval of strata of the geologic column that has distinguishing characteristics from surrounding strata. Also, a space ...
The process by which oxygen generated at the positive plate during charge reacts with the pure lead material of the negative plate and in the presence of sulfuric acid and reforms ...
When data is ready to be transmitted it is divided into pieces called packets. These packets contain information about which computer sent the data and where the data is going.
A credit card-sized peripheral that plugs into personal computers to expand RAM memory, add a modem, network card, hard drives, and other various PC devices. Three types of card ...
A long, green, cylinder-shaped member of the gourd family with edible seeds surrounded by mild, crisp flesh. Used for making pickles and usually eaten ...