Groundwater

What is the relationship between precipitation and groundwater levels?

• Precipitation has no effect on groundwater levels.

• Increased rainfall can lower the water table.

• Increased rainfall can raise the water table, while prolonged dry periods can lower it.

• Groundwater levels are only affected by human activities.

What is the Zone of Saturation?

• The area above the water table where soil is dry.

• The area below the water table where all the pore spaces are filled with water.

• The region where groundwater is not present.

• The layer of soil that retains moisture but does not saturate.

How can people access water from an aquifer?

• By collecting rainwater in barrels.

• By drilling a well that extends below the water table.

• By using a surface water source like a river.

• By digging a trench to the aquifer.

What is the role of wells in groundwater extraction?

• Wells are used to store rainwater for irrigation.

• Wells are constructed to access groundwater by penetrating the water table and allowing water to flow to the surface.

• Wells are primarily used for fishing purposes.

• Wells are built to prevent flooding in urban areas.

What are the main features of groundwater?

• Wells, the water table, and aquifers.

• Rivers, lakes, and oceans.

• Mountains, valleys, and plains.

• Clouds, rain, and snow.

What factors can cause the water table to lower?

• Increased rainfall and snowmelt

• Periods of low precipitation, increased evaporation, or excessive groundwater extraction

• Construction of large reservoirs

• Planting more trees and vegetation

What human activities can impact groundwater levels?

• Excessive groundwater extraction

• Planting trees and vegetation

• Using biodegradable materials

• Implementing rainwater harvesting

How does urbanization affect groundwater?

• Urbanization increases groundwater recharge by creating more green spaces.

• Urbanization has no effect on groundwater levels.

• Urbanization can reduce groundwater recharge due to increased impervious surfaces, leading to lower water tables and potential water shortages.

• Urbanization improves the quality of groundwater by filtering pollutants.

What are the environmental concerns related to groundwater?

• Contamination from pollutants

• Increased rainfall

• Soil erosion

• Over-farming of land

What is the difference between surface water and groundwater?

• Surface water is found in underground aquifers and soil, while groundwater is in bodies of water like rivers, lakes, and ponds.

• Surface water is found in bodies of water like rivers, lakes, and ponds, while groundwater is stored in underground aquifers and soil.

• Surface water is always cleaner than groundwater, which is often polluted.

• Groundwater is the only source of drinking water, while surface water is not suitable for consumption.