Hydrosphere Quiz - CBSE Class 6 Science

Free practice quiz: Hydrosphere (CBSE Class 6 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 20 multiple-choice questions on Hydrosphere, and 20 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is the largest source of water on Earth?

   1. Lakes
   2. Rivers
   3. Oceans
   4. Glaciers
   Show answer

   Answer: C. Oceans

   Oceans cover about 71% of Earth's surface and contain 97% of the planet's water, making them the largest source.

2. Which of the following is not a type of freshwater source?

   1. Lakes
   2. Rivers
   3. Oceans
   4. Ponds
   Show answer

   Answer: C. Oceans

   Oceans are saltwater bodies, while lakes, rivers, and ponds are sources of freshwater.

3. Which of these is essential for the process of photosynthesis in plants?

   1. Carbon Dioxide
   2. Water
   3. Sunlight
   4. All of the above
   Show answer

   Answer: D. All of the above

   Photosynthesis requires carbon dioxide, water, and sunlight to produce glucose and oxygen.

4. Calculate the amount of water needed if a plant requires 250 mL per day and you have 10 plants.

   1. 500 mL
   2. 1500 mL
   3. 2500 mL
   4. 3000 mL
   Show answer

   Answer: C. 2500 mL

   If each plant needs 250 mL of water, for 10 plants you multiply 250 mL by 10, resulting in 2500 mL.

5. What percentage of Earth’s water is freshwater?

   1. 1%
   2. 2.5%
   3. 10%
   4. 20%
   Show answer

   Answer: B. 2.5%

   Only about 2.5% of Earth's water is freshwater, and the rest is saltwater found in oceans.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which part of the water cycle involves water vapor turning into liquid?
2. What is the term for water stored underground in soil or rock?
3. Which process of the water cycle helps in cleaning the air?
4. What do we call the top level of groundwater?
5. What is the process of liquid water becoming water vapor called?
6. What is the main cause of ocean currents?
7. Why do plants need water?
8. What impact does deforestation have on the hydrosphere?
9. How does oil pollution affect marine life?
10. If a water reservoir had 10,000 liters of water and 3,500 liters were used, how much water is left?
11. What are aquifers primarily used for?
12. What is the role of wetlands in the hydrosphere?
13. How does urbanization affect local water cycles?
14. If a water treatment plant can process 12,000 liters of water per day, how much can it process in a week?
15. What causes saltwater intrusion in coastal areas?

More quizzes

• Lithosphere▶ Play
• Types of Environments▶ Play
• Atmosphere▶ Play

Browse all Components of the Environment quizzes

More to play