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Difficulty: MediumWater Cycle and Oceanography

When rainwater reaches the ground, a portion filters downward through soil and permeable rock layers to replenish deep underground aquifers. What is this downward filtration process called?

  1. A
    Surface runoff
  2. B
    Condensation
  3. PercolationAnswer
  4. D
    Sublimation

Answer

Percolation is the downward filtration of water through soil pore spaces and permeable rock layers into underground aquifers.
Percolation is the scientific term for the downward movement and filtering of water through soil and porous rock layers under the influence of gravity, recharging the water table and subterranean aquifers.

Step-by-Step Solution

1
Analyze the hydrologic mechanism described in the stem
Water moves downward through soil and rock strata under gravity to replenish groundwater reserves.
Differentiating subsurface filtration from overland flow and atmospheric phase changes is necessary.
2
Select the specific geological term that matches downward water movement through permeable media
Percolation precisely identifies the slow movement and filtering of water through soil and porous rock layers into aquifers.
Matches the scientific terminology for aquifer recharge in the hydrologic cycle.

Key Concept

Percolation and groundwater recharge in the hydrologic cycle
Estimated Time:1m 0s
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Topics

Water Cycle and Oceanography

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