Explore Exams
Login Signup
Sign in Open App
UPSC Exam  >  UPSC Test  >  Geography CSE  >  Test: Water - UPSC MCQ

Water - Free MCQ Practice Test with solutions, UPSC Geography


MCQ Practice Test & Solutions: Test: Water (20 Questions)

You can prepare effectively for UPSC Geography for UPSC CSE with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Water ". These 20 questions have been designed by the experts with the latest curriculum of UPSC 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 20

Sign up on EduRev for free to attempt this test and track your preparation progress.

Test: Water - Question 1
Save

What is the process by which water continually changes its form and circulates between oceans, atmosphere, and land?

Detailed Solution: Question 1

The water cycle describes the continuous movement of water on, above, and below the surface of the Earth.

Test: Water - Question 2
Save

What causes the rhythmic rise and fall of ocean water twice in a day?

Detailed Solution: Question 2

Tides are caused by the gravitational pull exerted by the moon and the sun on the Earth's oceans.

Clear all your doubts with EduRev
Test: Water - Question 3
Save

Which of the following is a warm ocean current?

Detailed Solution: Question 3

The Gulf Stream is a warm ocean current. Here are some key points:

  • It originates in the Gulf of Mexico.
  • Flows along the eastern coast of the United States.
  • Helps moderate the climate of nearby regions by transporting warm water.

Test: Water - Question 4
Save

What is the primary reason for the salinity of ocean water?

Detailed Solution: Question 4

The salinity of ocean water is due to the presence of dissolved salts, mainly sodium chloride.

Test: Water - Question 5
Save

What phenomenon is described as the "Harbour waves" in Japanese?

Detailed Solution: Question 5

Tsunami is a Japanese word meaning "Harbour waves" because harbours are often destroyed by these waves.

Test: Water - Question 6
Save

What causes a tsunami?

Detailed Solution: Question 6

Tsunamis are caused by underwater earthquakes, volcanic eruptions, or landslides that displace large amounts of ocean water.

Test: Water - Question 7
Save

What is the average salinity of the ocean?

Detailed Solution: Question 7

The average salinity of the ocean is approximately 35 parts per thousand (ppt). This means there are about 35 grams of dissolved salts in every kilogram of seawater.

This value can vary slightly depending on factors such as:

  • Location
  • Environmental conditions

However, 35 ppt is widely accepted as the global average for ocean water salinity.

Test: Water - Question 8
Save

What is the significance of March 22nd in relation to water?

Detailed Solution: Question 8

March 22nd is celebrated as World Water Day to highlight the importance of water conservation.

Test: Water - Question 9
Save

Which ocean current is a cold current?

Detailed Solution: Question 9

The Labrador Current is known as a cold ocean current. Here are some important points about it:

  • It flows southward along the coast of Canada and into the North Atlantic Ocean.
  • The cold waters significantly influence the climate of the regions it passes.
  • This current plays a crucial role in the marine ecosystem by supporting diverse marine life.

Test: Water - Question 10
Save

What percentage of Earth's water is found in the oceans?

Detailed Solution: Question 10

About 97.3% of Earth's water is found in the oceans and other saline (salt) water bodies. The remaining 2.7% is freshwater, which is mostly stored in glaciers, ice caps, and groundwater.

So:

  • Oceans: ~97.3%
  • Freshwater: ~2.7% (including glaciers, rivers, lakes, groundwater, etc.)

Test: Water - Question 11
Save

During which lunar phases do spring tides occur?

Detailed Solution: Question 11

Spring tides occur during the full moon and new moon phases when the Earth, moon, and sun are aligned.

Test: Water - Question 12
Save

What type of wave is caused by an underwater earthquake?

Detailed Solution: Question 12

A tsunami is a large, destructive wave caused by underwater earthquakes, volcanic eruptions, or landslides.

Test: Water - Question 13
Save

Which sea is known for its extremely high salinity where swimmers can float easily?

Detailed Solution: Question 13

The Dead Sea is renowned for having the highest salinity among the given options, with a salt concentration of approximately 33.7%. This extreme salinity significantly increases the water's density, allowing individuals to float effortlessly on its surface due to the buoyant force exerted by the dense water.

Test: Water - Question 14
Save

Which process is responsible for the formation of clouds?

Detailed Solution: Question 14

Clouds form through the process of condensation, which involves the following steps:

  • Water vapor in the atmosphere cools.
  • This cooled water vapor transforms into tiny droplets or ice crystals.
  • The accumulation of these droplets or crystals creates visible clouds.

Test: Water - Question 15
Save

What is the main function of tides in navigation?

Detailed Solution: Question 15

High tides help raise the water level near shores, aiding ships in reaching harbors.

Test: Water - Question 16
Save

Which of the following is NOT a factor that influences the movement of ocean water?

Detailed Solution: Question 16

Sunlight does not directly influence the movement of ocean water like wind, Earth's rotation, and gravitational pull do.

Test: Water - Question 17
Save

What is the phenomenon where ocean currents meet and create rich fishing grounds?

Detailed Solution: Question 17

When warm and cold ocean currents meet, they create nutrient-rich waters, making these areas excellent fishing grounds.

Test: Water - Question 18
Save

What is the primary source of fresh water?

Detailed Solution: Question 18

The correct answer is: B: Rivers, ponds, springs, and glaciers

The primary sources of fresh water on Earth include:

  • Rivers and ponds (surface water)
  • Springs (groundwater emerging to the surface)
  • Glaciers (frozen freshwater reserves)

These sources collectively provide the majority of accessible freshwater for human use, agriculture, and ecosystems.

Test: Water - Question 19
Save

Which ocean current is known for influencing the climate of Western Europe?

Detailed Solution: Question 19

The Gulf Stream carries warm water to Western Europe, significantly influencing its climate.

Test: Water - Question 20
Save

What event is described as the Earth's pandemonium due to its devastating effects?

Detailed Solution: Question 20

Tsunamis are often referred to as Earth's pandemonium due to their catastrophic effects.

178 videos|642 docs|170 tests
Join Course
Information about Test: Water Page
In this test you can find the Exam questions for Test: Water solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Water , EduRev gives you an ample number of Online tests for practice
178 videos|642 docs|170 tests
Join Course
Download as PDF

About this UPSC Practice Test

This test contains 20 MCQs on Water with detailed solutions for each question. It is part of the Geography for UPSC CSE course on EduRev, designed to align with the current UPSC syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

Explore more UPSC Study Resources

If you found this Water MCQ Test helpful, you can further enhance your UPSC preparation with in-depth courses on EduRev, for all the subjects and topics available in Geography for UPSC CSE course. The course offers:
  • Video Lectures: covering all the topics of Geography for UPSC CSE
  • Notes for Revision: offering revision notes, important questions, summaries, flashcards, cheatsheets & more for UPSC preparation
  • MCQ Test: variety of questions as per the pattern of UPSC exam
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup