Free CPG Environmental Geology & Hydrogeology Questions and Answers

Question 1

What is the primary focus of environmental geology?

Accepted Answer

Interaction of humans with geology

Answer

Environmental geology applies geological principles to understand and solve problems arising from the interaction between humans and the geological environment. This includes assessing natural hazards, managing water resources, dealing with waste disposal, and mitigating pollution, all aimed at promoting sustainable land use.

Question 2

What is an aquifer?

Accepted Answer

Groundwater storage rock formation

Answer

An aquifer is a body of permeable rock or unconsolidated material (like gravel, sand, or silt) that can store and transmit significant quantities of groundwater. It acts as a natural underground reservoir, allowing water to flow through its pore spaces or fractures, making it a crucial source of water for wells and springs.

Question 3

Which process is a common cause of groundwater contamination?

Accepted Answer

Leaching of pollutants

Answer

Leaching occurs when water percolates through contaminated soil or waste materials, dissolving soluble pollutants and carrying them downwards into the groundwater system. This process is a common and significant cause of groundwater contamination from sources like landfills, agricultural runoff, and industrial sites.

Question 4

What is the water table?

Accepted Answer

Upper limit of groundwater

Answer

The water table is the boundary between the saturated zone, where all pore spaces in the soil or rock are filled with water, and the unsaturated zone above it, where pore spaces contain both air and water. It represents the level below which the ground is saturated with groundwater.

Question 5

How does urbanization impact groundwater recharge?

Accepted Answer

Decreases infiltration and recharge

Answer

Urbanization typically involves covering natural land surfaces with impervious materials like concrete, asphalt, and buildings. These surfaces prevent rainwater from infiltrating the ground, significantly reducing the amount of water that can seep down to replenish groundwater aquifers, thus decreasing groundwater recharge.

CPG - Certified Professional Geologist Practice Test

CPG - Certified Professional Geologist Practice Test

Free CPG Environmental Geology & Hydrogeology Questions and Answers