Which term denotes the physical force that pushes water through a saturated porous material?

Which term denotes the physical force that pushes water through a saturated porous material?

Permeability is the physical force that pushes water below the water table through a porous, rock material. The water table is a surface separating the saturated and unsaturated zones.

What feature originates where the water table intersects the land surface?

1. Figure 12.9 and 12.12: A spring is a natural flow of water that occurs when the groundwater table intersects the land surface. The water emerges at the ground surface. Most large springs issue from fractured lava, limestone or gravel.

Which describes how a geyser erupts?

Which of the following best describes how geysers erupt? With a slight reduction in pressure, water in a saturated, natural conduit suddenly boils, sending a plume of steam and hot water into the air above the vent.

Is the upper boundary surface of the zone of saturation?

The upper limit of the zone of saturation is called the water table.

Which material is most readily dissolved by water?

Polar solutes or ionic solids dissolve best in water.

Which of the following can possibly contaminate an aquifer group of answer choices?

Which of the following can possibly contaminate an aquifer? pesticides.

Is bedrock an Aquiclude?

Bedrock is the hard rock that lies below all the sand, gravel and soil near the ground surface. A bedrock aquifer is an aquifer that is confined within hard bedrock layers. Water can travel through porous bedrock, or through cracks, fractures and crevasses in the hard bedrock.

What are characteristics found in all good aquifers?

Aquifers must be both permeable and porous and include such rock types as sandstone, conglomerate, fractured limestone and unconsolidated sand and gravel. Fractured volcanic rocks such as columnar basalts also make good aquifers.

Which will allow humans to access groundwater?

Water in aquifers is brought to the surface naturally through a spring or can be discharged into lakes and streams. Groundwater can also be extracted through a well drilled into the aquifer. A well is a pipe in the ground that fills with groundwater. This water can be brought to the surface by a pump.

What is the upper surface of the zone saturation called?

The upper surface of this zone of saturation is called the water table. The saturated zone beneath the water table is called an aquifer, and aquifers are huge storehouses of water.

When does water rise above the surface of an aquifer?

But if we drill a well through both the unconfined aquifer and the confining layer and into the confined aquifer, the water will rise above the top of the confined aquifer to the level of its potentiometric surface (well B in Figure 14.6). This is known as an artesian well, because the water rises above the top of the aquifer.

Which is the potentiometric surface for a confined aquifer?

The red dashed line in Figure 14.6 is the potentiometric surface for the confined aquifer, and it describes the total energy that water is under within the confined aquifer. If we drill a well into the unconfined aquifer, the water will rise to the level of the water table (well A in Figure 14.6).

Which is the correct equation for groundwater flow?

Darcy’s equation, which has been used widely by hydrogeologists ever since, looks like this: V = K * i (where V is the velocity of the groundwater flow, K is the hydraulic conductivity, and i is the hydraulic gradient). We can apply this equation to the scenario in Figure 14.5.

Where does groundwater flow to reach the water table?

In this case, most of the hillside forms the recharge area, where water from precipitation flows downward through the unsaturated zone to reach the water table. The area at the stream or lake to which the groundwater is flowing is a discharge area.