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Class 4 EVS chapter 13 question answer

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Welcome to Class 4 EVS chapter 13 question answer. On this page find important extra questions for this NCERT book for Class 4 EVS Chapter 13 A River’s Tale.

Class 4th EVS chapter 13 question answer (NCERT Book)

The questions found on the A River’s Tale class 4 EVS worksheet with answers have been prepared in a manner that is consistent with the NCERT book. Getting more practice with these questions will help you achieve better grades in school.

If you want to practice the worksheet online, close the accordion to hide the answers.


A River’s Tale Class 4 EVS chapter 13 question answer

Match the following

  1. d
  2. b
  3. e
  4. a
  5. c

Choose the right word

  1. Water is an important _________ (resource/artificial liquid).
  2. Fish is an ________ (terrestrial/aquatic) animal.
  3. The water of the ocean is ________ (salty/sweet).
  4. The substances that make the water dirty are called ________ (water contaminants/fuel).
  5. Throwing ________ (garbage/water) makes the river’s water dirty.
  1. Resource
  2. Aquatic
  3. Salty
  4. Water contaminants
  5. Garbage

Unscramble the words

  1. TERWA
  2. LOOFD
  3. SUTNAMI
  4. NATUALR
  5. ISHF
  1. WATER
  2. FLOOD
  3. TSUNAMI
  4. NATURAL
  5. FISH

Multiple Choice Questions

Question 1. Which of the following areas where you find fish?

a. Land
b. Water
c. Sky
d. Fire

Question 2. Which of the following is an important resource?

a. Water
b. Chalk
c. Books
d. Meteorite

Question 3. Which of the following substances dissolve in water?

a. Salt
b. Chalk
c. Oil
d. None of the above

Question 4. What is a natural disaster?

a. A natural disaster is a fatal condition that arises due to nature.
b. A natural disaster is a cake.
c. A natural disaster is an important condition to balance the world’s population.
d. All of the above

Question 5. Which of the following is an aquatic animal?

a. Seagull
b. Dolphin
c. Walrus
d. Dodo

  1. b
  2. a
  3. a
  4. a
  5. b

Answer the following questions

  1. How does water become dirty?
  2. What are the differences between sea and ocean?
  3. You have observed that there are only specific places near the sea where fishermen are found catching fish. Why?
  4. What is water pollution? How does it affect the lives of aquatic plants and animals?
  5. The Indian government has launched the project called “Namami Gange”. What do you think about this project?
  6. What is flood? How does it affect the regions close to the sea?
  7. How do you make water potable?
  8. Write five uses of water.
  9. Why is water an important resource?
  10. Paul tries to dissolve chalk in the water but it does not dissolve. Why does the chalk not dissolve in the water?
Answers
  1. There are several activities that make the water dirty and some of them are: –
    a. City sewage and industrial discharges.
    b. People washing and cleaning clothes near the water.
    c. People throwing garbage in the water.
    d. Pesticides applied to the farmlands.
  2. The differences between sea and ocean are: –
    a. Seas are smaller than oceans.
    b. Seas are found where the land and ocean meet.
    c. Seas are landlocked but oceans are not.
    d. Arabian sea is an example of a sea while the Pacific ocean is an example of an ocean.
  3. Fish or fishes are mostly found in the coastal regions because of the suitable conditions for their survival. Therefore, you see most of the fishermen are found in the coastal areas.
  4. The contamination of water bodies due to the mixing of toxic substances is called water pollution. It contaminates water with toxic substances, such as nitrogen and phosphorus that change the aquatic environment. Hence, the lives of aquatic habitats are affected.
  5. Namami Gange is a project started to clean the Ganga river. I think it is a great project to clean water because it will help the surrounding environment to foster living beings.
  6. A flood is a natural disaster. It is a condition in which the level of the water increases and floats to the nearest locations of the water bodies. The cities in the water bodies have difficulty driving on the road, and also the contaminated water is susceptible to many water-borne diseases such as Typhoid, Diarrhoea, and bacterial infections.
  7. There are many ways to make the water potable: –
    a. Boil the water.
    b. Filter with a clean cloth.
    c. Chlorinate the water.
    d. Decantation.
  8. The five uses of water are: –
    a. Drinking
    b. Cleaning
    c. Washing
    d. Generating electricity
    e. Flushing flames away.
  9. Water is an important resource because it can be used for many essential activities that are significant for survival.
  10. The chalk does not dissolve in the water because the particles of the chalk settle down in the water. This process is called sedimentation.

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