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Olympiad Test : Water - 1 - Class 5 MCQ


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10 Questions MCQ Test - Olympiad Test : Water - 1

Olympiad Test : Water - 1 for Class 5 2024 is part of Class 5 preparation. The Olympiad Test : Water - 1 questions and answers have been prepared according to the Class 5 exam syllabus.The Olympiad Test : Water - 1 MCQs are made for Class 5 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test : Water - 1 below.
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Olympiad Test : Water - 1 - Question 1

What percentage of Earth's surface is covered by water?

Detailed Solution for Olympiad Test : Water - 1 - Question 1

The Earth's surface is predominantly covered by water, approximately 71%. This includes oceans, seas, lakes, and rivers. It's essential for sustaining life on the planet.

Olympiad Test : Water - 1 - Question 2

Why is water called the universal solvent?

Detailed Solution for Olympiad Test : Water - 1 - Question 2

Water is known as the universal solvent because it has the ability to dissolve a wide variety of substances. This property makes it crucial for various biological and chemical processes.

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Olympiad Test : Water - 1 - Question 3

In which states of matter can water exist naturally?

Detailed Solution for Olympiad Test : Water - 1 - Question 3

Water is unique as it can exist in all three states of matter – solid (ice), liquid (water), and gas (water vapor) – under normal conditions on Earth.

Olympiad Test : Water - 1 - Question 4

What is the primary reason water is valuable to industries?

Detailed Solution for Olympiad Test : Water - 1 - Question 4

The primary reason water is valuable to industries is: It is a universal solvent.

Olympiad Test : Water - 1 - Question 5

Which process involves the passage of liquid through a filter paper?

Detailed Solution for Olympiad Test : Water - 1 - Question 5

Filtration involves passing liquid through a filter paper to separate solid impurities, as seen in the process of water purification.

Olympiad Test : Water - 1 - Question 6

How is distilled water obtained?

Detailed Solution for Olympiad Test : Water - 1 - Question 6

Distilled water is obtained through the process of distillation, where water vapor is condensed back into liquid form after being heated.

Olympiad Test : Water - 1 - Question 7

What is the simplest method for purifying drinking water at home?

Detailed Solution for Olympiad Test : Water - 1 - Question 7

Boiling water for about 10 minutes is a simple and effective method to kill germs and purify drinking water at home.

Olympiad Test : Water - 1 - Question 8

How does chlorination contribute to water purification?

Detailed Solution for Olympiad Test : Water - 1 - Question 8

Chlorination involves adding chlorine to water, which effectively kills germs, making the water safe for consumption. Chlorine tablets are commonly used for this purpose.

Olympiad Test : Water - 1 - Question 9

What is the purpose of adding alum during water treatment?

Detailed Solution for Olympiad Test : Water - 1 - Question 9

Alum is added to water to increase the rate of sedimentation by making impurities heavier and aiding in their removal.

Olympiad Test : Water - 1 - Question 10

What percentage of the Earth's surface is covered by water?

Detailed Solution for Olympiad Test : Water - 1 - Question 10

Approximately 71% of the Earth's surface is covered by water, including oceans, seas, lakes, and rivers. Water is essential for all living things.

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