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Water: A Precious Resource Practice Questions

Class 7 · Science · 1184 free MCQs with instant results and detailed explanations.

1184
Total
361
Easy
589
Medium
234
Hard

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Topics in Water: A Precious Resource

Water Management 387
Rainwater Harvesting 393
Water Table 404

Sample Questions from Water: A Precious Resource

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
What is the water table?
A. The upper surface of the zone of saturation
B. The level of water in oceans
C. The depth of rivers
D. The layer of soil that does not retain water
Show Answer & Explanation
Correct Answer: A
The water table is defined as the upper surface of the zone of saturation where the soil or rocks are completely saturated with water. It indicates the depth at which the ground is fully saturated with water.
Q2
Easy
What is the main source of groundwater?
A. Rainfall
B. Rivers
C. Lakes
D. Oceans
Show Answer & Explanation
Correct Answer: A
Groundwater primarily comes from rainwater that seeps into the ground.
Q3
Easy
Which of the following describes the water table?
A. The top level of groundwater
B. The surface of a river
C. The depth of the ocean
D. The level of a lake
Show Answer & Explanation
Correct Answer: A
The water table is defined as the upper surface of groundwater in the soil or rock.
Q4
Medium
What is the main source of groundwater?
A. Rivers
B. Rainfall
C. Lakes
D. Oceans
Show Answer & Explanation
Correct Answer: B
Groundwater primarily originates from rainfall that infiltrates the soil and fills the underground aquifers.
Q5
Medium
Which of the following activities can lead to a depletion of the water table?
A. Rainwater harvesting
B. Excessive irrigation
C. Planting trees
D. Building reservoirs
Show Answer & Explanation
Correct Answer: B
Excessive irrigation can use more groundwater than can be replenished, leading to a decline in the water table.
Q6
Medium
What term describes the upper level of groundwater in the soil?
A. Water table
B. Aquifer
C. Surface water
D. Reservoir
Show Answer & Explanation
Correct Answer: A
The water table is the upper surface of the saturated zone in the ground where the soil or rock is fully saturated with water.
Q7
Medium
Which of the following methods can help recharge the water table?
A. Over-pumping
B. Rainwater harvesting
C. Deforestation
D. Urbanization
Show Answer & Explanation
Correct Answer: B
Rainwater harvesting captures rainwater for use and allows it to infiltrate the ground, helping to recharge the water table.
Q8
Hard
What is the primary source of groundwater that replenishes the water table?
A. Rainfall and surface water
B. Desalination plants
C. Water from rivers
D. Water from lakes
Show Answer & Explanation
Correct Answer: A
Rainfall and surface water seep into the ground, replenishing the groundwater, which contributes to the water table.
Q9
Hard
If the water table in an area drops due to drought, which of the following could be a direct consequence?
A. Increased groundwater availability
B. Decreased agricultural productivity
C. Higher surface water levels
D. Improved water quality
Show Answer & Explanation
Correct Answer: B
A drop in the water table reduces the availability of water for irrigation, leading to decreased agricultural productivity.
Q10
Hard
Which of the following statements about the water table is NOT true?
A. It can vary with weather conditions.
B. It is found below the Earth's surface.
C. It remains constant throughout the year.
D. It separates the saturated zone from the unsaturated zone.
Show Answer & Explanation
Correct Answer: C
The water table fluctuates with seasonal changes and weather conditions, so it does not remain constant.

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Water: A Precious Resource — Class 7 Science Practice Questions Online

This page contains 1184 practice MCQs for the chapter Water: A Precious Resource in Class 7 Science. The questions are organized by difficulty — 361 easy, 589 medium, 234 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.