Question

Which of the following statements are correct?​
(i) The level of groundwater below the surface of the earth at a given place is known as the water table.
(ii)​ Extensive use of groundwater in cities for domestic and industrial purpose purposes increases the level of the water table.
(iii) ​ Rainwater gathers over bed rock to form the water table.​
(iv) Rainwater harvesting depletes the groundwater table.​

• A. 1 and 4 ​
• B. 1 and 3 ​
• C. 3 and 4 ​
• D. 1 and 2 ​

Answer 1

The correct option is B 1 and 3 ​

• The level of groundwater below the surface of the earth at a given place is known as the water table. Thus, statement (i) is correct.
• Extensive use of groundwater in cities for domestic and industrial purposes depletes the groundwater and results in a decrease in the level of the water table.​ Thus, statement (ii) is incorrect.
• The rainwater that percolates into the soil is collected over the bedrock and forms the water table. Thus, statement (iii) is correct.
• Rainwater harvesting is a water conservation technique that helps in recharging the groundwater. In this technique, the collected rainwater is allowed to seep into the soil and thereby increasing the groundwater table. Thus, statement (iv) is incorrect.
• Therefore, only statements 1 and 3 are correct.
• Hence, the correct answer is option A.