Grade-3 Social Science, Chapter-10 Pollution


Chapter 10
Topic:  Pollution

Section A

Label the pictures with the type given.
(land pollution,  water pollution,  noise pollution,  air pollution)



Complete the paragraph.

Pollution is the contamination of the natural environment. There are many types of pollution, but principally we have four. air pollution, water pollution, land pollution and noise pollution.
The causes of air pollution are the vehicles, smoke from factories or airplanes. Water pollution is caused due to oil waste and industrial waste. Land pollution is the consequence of throwing industrial or home waste and causes of noise pollution are horns of cars and even speaking loudly.

Section B

Q. List any three ways in which you can help to prevent air pollution.
Ans- Three ways to prevent air pollution are as follows:
1.   Plant more trees to absorb impure air.
2.   Use CNG for commercial vehicles.
3.   Do not burn crackers.

Q. List any three ways in which you can help to prevent noise pollution.
Ans- Three ways to prevent noise pollution are as follows:
1.   Avoid honking unnecessarily in traffic.
2.   Reduce the volume of public address system.
3.   Do not watch television or listen to music in loud volume.

Section C

Q. What do you think would happen if all plants on the Earth started to die due to pollution? How would it affect us?
Ans- Plants give off oxygen. This gas is used by animals to breathe. All animals eat either plants or plant-eating animals. Without plants there will be no oxygen and food for animals and they will also die.  

In the box given below plan a poster on the topic Me and My Environment. Think of a catchy slogan and write on the poster (for example: Be a Part of The Solution Not Part Of The Pollution, Green revolution is the best solution to stop pollution)



Section D

Q. List any three ways by which you can prevent water pollution and save water.
Ans-  Following are three ways by which you can prevent water pollution and save water:
1.   Harmful industrial waste should be treated before throwing into water bodies.
2.   Sewage should be treated and purified before allowing it to enter the water bodies.
3.   Treated water of industries should be used for irrigation purpose.

Section E

Q. Mention two steps which can help to control
          Air Pollution        Soil Pollution
Ans- Steps to Control Air Pollution-
1)   Plant more trees to absorb impure air.
2)   Use better quality of petrol and diesel.
      Steps to Control Soil Pollution-
1)   Discourage excessive use of fertilizers and pesticides.
2)   Do not mix the waste containing chemicals into soil.

Q. What is noise pollution?
Ans- Excessive noise that is harmful to health and affects environment quality is called pollution.

Q. Name two diseases caused by water pollution.
Ans- Two diseases caused by water pollution are:
1)   Cholera
2)   Typhoid

Back to Table of Contents


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-     After almost 250 hours of weaving, one plain p
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.     Fruits, roots and plants for medicines b.     Fish from river c.     Both a and b  ( √ ) d.     Firewood 5-     People of the Khedi village had to leave their lands because of: a.     Upcoming factory b.     Upcoming dam  ( √ ) c.     They wanted to m
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 better hearing than animals with smaller ears. True 3- Snakes do not have external ears.                                                                                       True 4- Some animals start behaving in a different way when an earthquake or storm is about to come.                                                    
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         ( √ ) d.        Humming bird 4.        Which of these bird makes hanging nest by tying dry grass and sticks into knot? a.        Eagle b.        Woodpecker c.        Pigeon d.        Weaver bird         ( √ ) Fill in the blanks: (a)     The Owl said- Stop this hullabaloo. (b)     We all are special in our own way. (c)      Birds eat different types of food. (d)     Birds’ feathers help them to fly and keep them warm. (e)     Birds build a new nest every time they h
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 ­Bishnoi. 3-     Sometimes back
Read more