Tag: water table

Questions Related to water table

The water table fluctuates:

social science water: a precious resource water table groundwater and depletion of water table the water cycle

  1. by climatic variations

  2. by the amount of precipitation used by vegetation

  3. by withdrawing excessive amounts of water from wells

  4. all of them

Show answer
Correct Option: D
Explanation:

The water table is also known as ground water table in which water seeps into the ground and move downward till it reaches the stage of saturation hence it fluctuates by changes in seasons, precipitation or by withdrawing a large amount of water. 

Which of the following does not cause a depletion in the water table of a place?

social science water: a precious resource water table groundwater and depletion of water table the water cycle

  1. Constructing factories and houses

  2. Making concrete roads and floors

  3. Deforestation

  4. None of these

Show answer
Correct Option: D
Explanation:

All the three options cause depletion in water table in a place as first and second case consume water and third case decrease water retention of soil and also decrease rainfall.

So, none of these is the correct option.                     

What happens to the water table of a place having droughts for a long period of time?

social science water: a precious resource water table groundwater and depletion of water table the water cycle

  1. It gets higher because of continuous evaporation and flow.

  2. It gets lower because of continuous evaporation and flow

  3. It gets replenished continuously

  4. can't say anything

Show answer
Correct Option: B
Explanation:

The water table is also called as groundwater table. It's recharge depend on the recharge from infiltration of precipitation so when a drought hit the land surface it affects the water level below ground. This result in falling groundwater level due to evaporation and flow.

So, the correct option is 'it gets lower due to continuous evaporation and flow'.

A man digging the ground near a water body found that the soil was moist.As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called:

social science water: a precious resource water table groundwater and depletion of water table the water cycle

  1. water level

  2. ground water

  3. water table

  4. water limit

Show answer
Correct Option: C
Explanation:

The upper limit of this layer where water is present between particles of soil and gaps between rocks is called water table and water below the layer is called groundwater.

The process of seeping out water into the ground is called:

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. evaporation

  2. infiltration

  3. transpiration

  4. None of these

Show answer
Correct Option: B
Explanation:

The process of seeping out water into the ground is known as infiltration.

 It is process by which water goes into the ground resulting in increase in water table.
The process is not evaporation as it means evaporating the water present on the ground. 
The process is not transpiration as it is the process by which moisture is carried through plants from roots to small pores on the underside of leaves.

Groundwater accumulates between the layer of hard rocks. It is known as:

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. pond

  2. water table

  3. surface water

  4. aquifer

Show answer
Correct Option: D
Explanation:

Ground water accumulator between the layer of hard rocks (water bearing permeable rock, rock fractures). It is known as aquifer.

At places, the groundwater is stored between layers of hard rock below the water table. This is known as __________.

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. a reservoir

  2. an aquifer

  3. a hard water

  4. a well water

Show answer
Correct Option: B
Explanation:

An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand or salt). Ground water can be extracted using a water well.

Water in the aquifers can be usually pumped out with the help of:

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. handpumps

  2. drilling

  3. tubewell

  4. both $A$ and $C$

Show answer
Correct Option: D
Explanation:

When a water-bearing rock readily transmits water to wells and springs, it is called an aquifer. Wells can be drilled into the aquifers and water can be pumped out with handpump or tubewell.

If we dig a hole in the ground near a water body we may find that the soil is ________.

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. oily

  2. moist

  3. red

  4. both $A$ and $B$

Show answer
Correct Option: B
Explanation:

If we dig a hole in ground near a water body, the soil becomes moist. Because the ground water accumulated inside the ground provide moisture to the soil.

The soil cannot be find oily because oil is found in few regions and found deep inside the earth.
The soil cannot be find red as red soil is formed by crystalline rocks and these rocks are found very rarely. 

Groundwater gets recharged by the process of:

social science water: a natural resource water table groundwater and depletion of water table the water cycle

  1. pumping

  2. heavy rainfall

  3. infiltration

  4. None of the above

Show answer
Correct Option: C
Explanation:

Groundwater gets recharged by this process of infiltration.
Infiltration is the process by which precipitation or the bulk of rainwater and melted snow soaks into subsurface soils and moves into rocks through cracks and pore spaces. so when the water soaks into the ground the groundwater gets recharged.