FUNDAMENTALS OF COMPUTER

BASIC COMPUTER CONCEPTS

IMPACT OF COMPUTERS ON WORK ENVIRONMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
People often build structures to control how rivers flow. What is the name for the type of structure that uses raised land to prevent the water from spreading out when river water rises?
A
delta
B
levee
C
dead zone
D
lock-and-dam
Explanation: 

Detailed explanation-1: -A levee is a natural or artificial wall that blocks water from going where we don’t want it to go. Levees may be used to increase available land for habitation or divert a body of water so the fertile soil of a river or seabed may be used for agriculture. They prevent rivers from flooding cities in a storm surge.

Detailed explanation-2: -Flood control structures on floodplains include dikes (levees), drainage canals, and floodways. Dike construction alters floodplain hydrology and sedimentation, and also inhibits some of the geomorphic functions of floodplains, including floodwater storage capacity (Hudson et al., 2008).

Detailed explanation-3: -These raised banks are called levees.

Detailed explanation-4: -The flooding of the river is an example of unsteady and non-uniform flow. There are many different types of flow and are classified as below: Steady flow: it is defined as a type of flow in which the fluid characteristics like velocity (V), pressure (P), density (), etc. at a point do not change with time.

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