100+ Groundwater Hydrogeology Questions Answers Pdf - 1

Question: 1

Differentiate ground water from soil water?

When rain falls on the land mass, some of the water runs off as streams and rivers, some evaporates and the remaining water percolates in to the ground. This is called soil water.

When the soil is saturated the excess water penetrates downward until it reaches the saturated zone. The water held in this zone is called ground water.

Question: 2

Describe in brief about the pore spaces?

The surface water seeps into the ground because the bedrock, sediments and soil contain voids or openings.

These openings are similar to those of a sponge and are often called pore spaces.

The rock that consists of such pores spaces are called porous rock.

Question: 3

Define porous rock?

The quantity of ground water that can be stored depends on the number of pore spaces present in the material. The rock that consists of such pore spaces are called porous rock.

Question: 4

What are aquifers?

Permeable rock strata or sediments such as sand or gravel that transmit ground water freely are called aquifers.

Question: 5

How are caverns formed?

Most caverns are formed at or just below the water table in the zone of saturation.

Here the ground water follows the lines of weakness in the rock, such as joints and bedding planes.

As time passes, the dissolving process slowly creates cavities and gradually enlarges them into caverns.