Class-4 EVS, Chapter-13, A River's Tale, Additional Exercises with Solutions / NCERT


Chapter – 13
A River’s Tale

Match the column:

A
B
People use river water for
is seen during rainy season
Filtering, boiling, UV treatment are methods for
dissolve in water.
Sugar, salt, lemon juice, sherbet
washing clothes, bathing animals and cleaning utensils
Muddy water in reservoirs
cleaning water

Ans
A
B
People use river water for
washing clothes, bathing animals and cleaning utensils
Filtering, boiling, UV treatment are methods for
cleaning water
Sugar, salt, lemon juice, sherbet
dissolve in water.
Muddy water in reservoirs
is seen during rainy season

Click here for Hindi (रिमझिम) Class-4

Fill in the blanks:

     1-  Water in the river keeps changing as it flows through various places.
     2-  Flow of stream is different at different times of a year.
     3-  Water from the sea is not drinkable.
     4-  Industrial effluents pollute the river water.
                                                                                            (Click here for Class-4 English, Marigold) 
Answer the following questions:

Q. What could the reason for decrease in number of fishes in river?
Ans- The reason for decrease in number of fishes in river is pollution.

Q. What could be done to keep rivers clean? Discuss.
Ans- Following things can be done to keep rivers clean:
     1-  Stop washing/ bathing activities
     2-  Treating the municipal waste
     3-  Treating industrial effluents

Q. If you want to drink some water, from which part of the river would you like to drink? Why?
Ans- I would like to drink the water of the river from the mountain region as it is the cleanest water.

Q. Will there be same amount of water in the ponds or rivers during the rainy season and in summer?
Ans- No, the amount of water in the ponds or rivers will be more in rainy season compared to summer.

Q. Find out the many different ways of cleaning water at home.
Ans-  Following are different ways of cleaning water at home:
      1-  Boiling
      2-  Using Filters
      3-  Using Purification drops. Tablets
      4-  Solar treatment
      5-  UV treatment
      6-  Using Bleach/ alum

Draw pictures of various ways of cleaning the water.





Comments

Post a Comment

Popular posts from this blog

Class-5 EVS, Chapter-13, A Shelter so High! , Additional Exercises with Solutions/ NCERT

Image
Chapter- 13 A Shelter so High Match the column: A B Houses in Mumbai are Rebo Bakarwal people live in houses Love to stay in houseboats Tourists in Srinagar lekha House of Changapas is known as Made of stone and mud Place to keep sheeps and goats is known as made of cement, bricks, glass and steel A B Houses in Mumbai are made of cement, bricks, glass and steel Bakarwal people live in houses Made of stone and mud Tourists in Srinagar Love to stay in houseboats House of Changapas is known as Rebo Place to keep sheeps and goats is known as lekha Fill up the blanks with suitable words: 1-     High, dry and flat lands of Leh is called as cold desert. 2-     The goats from which the soft pashmina wool is collected are found at an altitude of 5000 metres. 3-     Aft...
Read more

Class-5, EVS, Chapter-18, No Place for Us?, Additional Exercises with Solutions / NCERT

Image
Chapter- 18 No Place for Us? Choose the correct answer: 1-     Which job Jatryabhai started doing in Mumbai? a.     Painting on walls b.     Plumbing c.     Repair torn fishing nets  ( √ ) d.     Ironing clothes 2-     Jatryabhai used to money he earned to a.     To pay for medicines, food and school fee b.     Rent for the house c.     Buying water d.     All the above  ( √ ) 3-     What did children learn Jatryabhai’s village? a.     To dance together, recognize birds and their sounds b.     To play flute and dhol c.     To make pots of clay and bamboo d.     All the above  ( √ ) 4-     Young men of village would bring following things from forests and sell them in towns: a.   ...
Read more

Class-5 EVS Chapter-1 Super Senses/NCERT

Image
Chapter-1 Super Senses Fill in the blanks: 1- Some male insects can recognize their females by their smell. 2- Kites, eagles and vultures can see four times as far as we can. 3- Animals that are awake at night can see things only in black and white. 4- Elephant, rabbit, cow and buffalo have ears bigger than our ears. 5- Fishes give alarm call by electric signals. 6- As the ants move, they leave a smelly trail behind them. State whether the following statements are true or false: 1- Animals can see as many colours as we can.                                                                    False 2- Animals with bigger ears have bet...
Read more

Class-3 EVS, Chapter-8 Flying High, Additional exercises with solutions

Image
Chapter- 8 Flying High Choose the correct answer: 1.        We see birds a.        On trees b.        In water c.        On the ground d.        All the above         ( √ ) 2.        How do birds give birth by? a.        Laying egg             ( √ ) b.        Directly birth of babies c.        Both d.        None of these 3.        Which of these birds stitches leaves together to make nest? a.        Parrot b.        Tailor bird c.        Weaver bird...
Read more

Class-4 EVS Chapter-4 The Story of Amrita

Image
Chapter-4 The Story of Amrita ­­­­­­ Match the column: A B Khejadi can grow is used for making medicines Bark of Khejadi affected by insects. People cook and eat is without much water. Its wood is not leaves of khejadi. Children like to fruits (beans). Animals eat the play in is shade. Ans. A B Khejadi can grow without much water. Bark of Khejadi is used for making medicines People cook and eat is fruits (beans). Its wood is not affected by insects. Children like to play in is shade. Animals eat the leaves of khejadi. Click here for Hindi (रिमझिम) Class-4 Fill in the blanks: 1-     Khejadi was the most common tree that grew in Amrita’s village. 2-     People of Amrita’s village are called ­Bish...
Read more