GEOLOGY

EARTH SCIENCE

HYDROGEOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An aquifer is a(n)
A
well in which water rises because of pressure
B
underground layer of rock or sediment that holds water
C
type of hot spring from which the water periodically erupts
D
place where groundwater bubbles or flows out of cracks in the rock
Explanation: 

Detailed explanation-1: -An aquifer is a body of rock and/or sediment that holds groundwater. Groundwater is the word used to describe precipitation that has infiltrated the soil beyond the surface and collected in empty spaces underground. There are two general types of aquifers: confined and unconfined.

Detailed explanation-2: -An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characteristics.

Detailed explanation-3: -An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.

Detailed explanation-4: -A confined aquifer is an aquifer bounded on top by a dense layer of sediment or rock that water can’t pass through.

Detailed explanation-5: -Water in aquifers below the oceans is generally saline, while the water below the land surfaces (where freshwater, which fell as precipitation, infiltrates into the ground) is generally freshwater.

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