TCEQ GROUNDWATER C EXAM WITH COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+|BRAND NEW
VERSION!!
Question 1
What term describes the natural, continuous exchange of water between the earth’s surface and
the atmosphere?
A) Percolation
B) Sublimation
C) Hydrologic Cycle
D) Evapotranspiration
E) Precipitation
Correct Answer: C) Hydrologic Cycle
Rationale: The hydrologic cycle is the endless process by which water moves from the
atmosphere to the earth through precipitation and returns through evaporation and
transpiration. It is the fundamental concept of water movement that recharge aquifers and
surface water bodies.
Question 2
Approximately what percentage of the earth's total fresh water supply is stored underground in
aquifers?
A) 1%
B) 10%
C) 25%
D) 50%
E) 75%
Correct Answer: C) 25%
Rationale: While most of the earth's water is salt water in oceans, and a large portion of
fresh water is locked in glaciers, approximately 25% of the available fresh water is found
beneath the earth's surface in groundwater formations.
Question 3
What is the process called when soil water trickles downward through the ground until it
contacts an impervious layer of rock or clay?
A) Capillary action
B) Percolation
C) Saturation
D) Stratification
E) Aeration
Correct Answer: B) Percolation
Rationale: Percolation is the movement of water through the pores of soil and rock by
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+|BRAND NEW
VERSION!!
Question 1
What term describes the natural, continuous exchange of water between the earth’s surface and
the atmosphere?
A) Percolation
B) Sublimation
C) Hydrologic Cycle
D) Evapotranspiration
E) Precipitation
Correct Answer: C) Hydrologic Cycle
Rationale: The hydrologic cycle is the endless process by which water moves from the
atmosphere to the earth through precipitation and returns through evaporation and
transpiration. It is the fundamental concept of water movement that recharge aquifers and
surface water bodies.
Question 2
Approximately what percentage of the earth's total fresh water supply is stored underground in
aquifers?
A) 1%
B) 10%
C) 25%
D) 50%
E) 75%
Correct Answer: C) 25%
Rationale: While most of the earth's water is salt water in oceans, and a large portion of
fresh water is locked in glaciers, approximately 25% of the available fresh water is found
beneath the earth's surface in groundwater formations.
Question 3
What is the process called when soil water trickles downward through the ground until it
contacts an impervious layer of rock or clay?
A) Capillary action
B) Percolation
C) Saturation
D) Stratification
E) Aeration
Correct Answer: B) Percolation
Rationale: Percolation is the movement of water through the pores of soil and rock by
