GEOLOGY

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EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A region has large areas of flat farm land covered by layers of soil. Underground, there is a large aquifer that stretches beneath most of the region. Over a period of many years, much of the water in the underground aquifer that normally is removed through wells and used to irrigate crops is no longer used by farmers and locals. If the amount of precipitation maintains over the same period of many years, what effect could the lack of irrigation of crops have on the aquifer?
A
The groundwater will decrease
B
The groundwater will increase
C
The groundwater will stay the same
D
The groundwater will expand
Explanation: 

Detailed explanation-1: -Groundwater is fresh water (from rain or melting ice and snow) that soaks into the soil and is stored in the tiny spaces (pores) between rocks and particles of soil. Groundwater accounts for nearly 95 percent of the nation’s fresh water resources.

Detailed explanation-2: -Figure 2 is a simple cartoon showing three different types of aquifers: confined, unconfined, and perched. Recharge zones are typically at higher altitudes but can occur wherever water enters an aquifer, such as from rain, snowmelt, river and reservoir leakage, or from irrigation.

Detailed explanation-3: -Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers.

Detailed explanation-4: -A water table describes the boundary between water-saturated ground and unsaturated ground. Below the water table, rocks and soil are full of water. Pockets of water existing below the water table are called aquifers.

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