GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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layer of loose gravel
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layer of sand
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layer of gravel
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layer of hard clay
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layer of solid rock
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Detailed explanation-1: -zone of saturation, saturated zone) is the area in an aquifer, below the water table, in which all pores, fractures, and cavities (including karst caves) are filled with water.
Detailed explanation-2: -Aquifer. An aquifer is an underground rock or sediment layer composed of materials such as sand, soil, or gravel. These layers are either filled (saturated) with water, can store groundwater, or are sufficiently porous (permeable) to allow water to flow into wells and springs.
Detailed explanation-3: -The top of the saturated zone is called the water table (Diagram 1). The water table may be just below or hundreds of feet below the land surface.
Detailed explanation-4: -Beaches and coasts, for example, will have zones of saturation that are very close to the surface. The water table can also be higher or lower, depending on where the top of the zone of saturation is. The water table can rise or fall due to natural events such as heavy rain, droughts, and flooding.