Journey of a River Class 5 Question Answer EVS Chapter 2

Access the best NCERT Solutions Class 5 EVS Question Answer and Our Wondrous World Unit 1 Life Around Us Chapter 2 Journey of a River Questions and Answers are aligned with classroom teachings.

Class 5 EVS Chapter 2 Journey of a River Question Answer

Journey of a River Class 5 EVS Question Answer

Our Wondrous World Class 5 EVS Chapter 2 Question Answer – Class 4 EVS Journey of a River Question Answer

Intext (Page 22)

Look at the image given below and answer the following.

1. Name the states that Godavari flows through.
……………………………………..
2. Name a dam and a wildlife sanctuary along the length of Godavari.
……………………………………..
3. Which other small rivers join Godavari in its journey?
……………………………………..

Answer:

1. The Godavari river flows through the states of Maharashtra, Telangana, Chhattisgarh, Andhra Pradesh, and Odisha.
2.

• Polavaram Dam (Andhra Pradesh),
  Sriram Sagar Project (SRSP) Dam (Telangana)
• Coringa Wildlife Sanctuary

3. According to the given figure, the other small rivers that join the Godavari in its journey are:

• Manjira
• Sabari
• Indravati

Intext (Page 24)

Since ancient times, people have always built their homes near rivers or water bodies. Can you guess why?
Answer:
There are several important reasons that people have built their homes near a river or a water body. They are:

• Rivers provide a constant source of freshwater for drinking, cooking, bathing, washing, cleaning, etc.
• The soil near the river or water body is fertile, making it ideal for growing food.
• Factories need water to make many of the things we use every day.
• Rivers are a good source of fish and other aquatic food.
• Animals also needed water, so being near a river helped in raising livestock.
• Rivers are used as a means of transportation, helping boats carry people and goods from one place to another.

Intext (Pages 25-26)

Question 1.
List three ways in which people are dependent on the river Godavari.
Answer:
Three ways in which people are dependent on the river Godavari are:

• People use the river’s water for drinking, cooking, washing, bathing, etc.
• Farmers depend on the Godavari’s water to grow crops like rice, sugarcane, and cotton.

(iii) Many people, such as fishermen, boatmen, and workers in factories near the river, earn their livelihoods through activities connected to the river.

Question 2.
In which occupations are people engaged near the river Godavari?
Answer:
People living near the river Godavari are engaged in various occupations that depend on the river. Some of them are:

• Farming: Farmers use river water to grow crops.
• Fishing: Fishermen catch fish from river to sell or eat.
• Boating and Transport: People use boats to carry people and goods across river.
• Working in Factories: People working in the factories near the river use its water for making goods.
• Selling Goods and Services: Shopkeepers sell items or foods to the pilgrims or tourists visiting holy riverbanks.

Question 3.
Which crops do you see growing near the Godavari?
Answer:
The crops that are growing near the Godavari are paddy, sugarcane, cotton, pulses, fruits such as mango, banana, etc. These crops grow well because the Godavari provides plenty of water for irrigation and the soil near the river is very fertile.

Question 4.
Which crops grow in your region? Where does the water for irrigation come from?
Answer:
(Answer may vary)
I live in Delhi near the Yamuna river. The main crops that grow in nearby areas are wheat, rice, radish, spinach, mustard, carrots, coriander, etc.

Activity 1 (Page 26)

Make a poster in your classroom showing all the ways rivers help people. Include drawings of homes, farms, boats, fishermen and more.
Do it yourself.

Write (Page 27)

What problems can arise after a dam is built? How can they be solved?
Answer:
After a dam is built, several problems can arise, such as:

• Flooding of land can cover forests, farms, and villages with water. This destroys many trees and plants.
• People and animals living in those places have to move away. This causes problems in their daily life and work.
• A dam blocks the natural flow of the river. The river can no longer carry nutrients as before.
• Fish migration is blocked, reducing fish populations.

These problems can be solved by proper planning before the construction of a dam:

• Dam sites must be chosen carefully to avoid damaging important natural and human areas.
• New protected areas must be set up to relocate animals to safe zones.
• Trees must be planted around the dam to reduce soil erosion.
• Fishways are structures that provide a series of pools or steps, allowing fish to bypass the dam by swimming or leaping between them.

Write (Page 28)

Question 1.
Where do the plastic wrappers and bags that we litter end up?
Answer:
The plastic wrappers and bags that we litter end up in water bodies such as drains, lakes or rivers. When they reach such water bodies, they pollute the water and harm the aquatic animals like fish, turtles, and other creatures. Since plastic is non-biodegradable, it stays in the environment for many years and causes a lot of damage.

Question 2.
What kinds of soaps, shampoos or floor cleaners (natural or readymade) are used in your home? Where does the unclean water mixed with these cleaners go?
Answer:
(Answer may vary)
In our home, we use readymade soaps, shampoos and floor cleaners.
The water gets mixed with these soaps and floor cleaners and goes down the drains of the bathroom or kitchen. This water flows through underground sewage pipes and directly enters rivers, lakes or other water bodies without proper cleaning. It pollutes the water and harms animals, plants, and people who depend on it.

Discuss (Page 28)

Ask your parents or elders, about the condition of water bodies near your home when they were your age. What is the status of those water bodies today?
Answer:
(Answer may vary)
When I asked my parents about the condition of water bodies near our home when they were my age, they said that the rivers, ponds, and lakes were clean, and people used to bathe, wash clothes, and even drink from them. There were many fish and birds around the water bodies.

Today, the situation has changed as many water bodies have become dirty and polluted. People throw plastic and garbage into them. Some lakes have dried up or are filled with these wastes. The water is no longer safe to use, and animals and birds are disappearing from those areas.

Activity 2 (Page 29)

Make a list of things that we throw into the waste bin at home or school. If these things were thrown into a river or a pond, how would each of these items harm the animals, plants and people who live nearby, and use this water?
Answer:

S.No.	Items thrown in the Waste Bin	Harmful Effects of the Item thrown into the River or Pond
1.	Plastic bags and wrappers	Pollute water, choke fish, turtles, block sunlight, float for years as these are non-biodegradable
2.	Food waste	Degrade in water, foul smell, attract flies and insects
3.	Used tissues and napkins	Increase water pollution
4.	Batteries	Harmful chemicals will cause water pollution
5.	Old toys(plastic)	Increase water pollution and harm aquatic animals

Activity 3 (Page 29)

Take two clear glasses of water. Add a spoonful of sugar in one and a spoonful of cooking oil in the other. Stir both well and observe. What do you observe? Which one appears clear?
Answer:
Observation: When spoonful of sugar was added to one of the glass of water and stirred it, the sugar dissolved completely. The water in the glass looked clear and transparent.
In the other glass, when cooking oil was added and stirred it, the oil floated on top and did not mix with the water. The water in the glass looked cloudy and not clear.
Conclusion: The glass of water stirred with sugar appears clear.
This experiment shows us that sugar can dissolve in water while cooking oil do not.

Intext (Pages 29-30)

Can you list a few things that: Dissolve in water
……………………………………………….
……………………………………………….
Do not dissolve in water
……………………………………………….
……………………………………………….
Answer:
The things that dissolve in water are salt, sugar, lemon juice, honey, etc. The things that do not dissolve in water are oil, sand, chalk, ghee, plastic, etc.

Activity 4 (Page 30)

Look at the two images given below. Which river looks healthy and why? How do so many plants grow in water? What do you think happens when too many plants grow in a river?

Answer:
The first river with clean water (lefthand side) looks healthy because the water is clear and there is little or no waste visible. This river is safe for plants and animals.
The second river is covered with a green blanket of plants, which means too many plants growing. Fertilisers that are used to grow crops get washed down into river water. They make plants and other organisms grow very fast, this growth further covers the surface of river water like a ‘green blanket’.

When too many plants grow in a river, this slowly starts choking all the life inside the river. The water also becomes unsafe for people to drink.

Write (Page 31)

Can you list three things you can do to protect the water bodies near you?
1. ………..
2. ………..
3. ………..
Answer:
1. We should throw waste in waste bins and not in drains and rivers. This helps keep the water body clean and safe for people and animals.
2. We must use eco-friendly soaps, shampoos and cleaning products so that the chemicals do not pollute the river.
3. We must avoid using too much fertilisers as these chemicals can harm the aquatic life inside the water bodies.

Activity 5 (Page 32)

Match the Columns.

Note: One problem could affect more than one things.

Answer:
(i)-(f); (ii)-(d), (g); (iii)-(g); (iv)-(c), (e); (v)-(f), (vi)-(a), (f); (vii)-(c)

Activity 6 (Page 33)

Flood Safety Tips
Read the flood safety tips carefully.

Activity 7 (Page 34)

Read the flood safety tips given in Activity 6 and organise a role-play where you are the Sarpanch or Municipal Corporator of your village or city.
Discuss what actions you will take to –

• prevent flooding
• prevent damage caused by flooding
• keep elderly people and people with disability safe
• keep animals safe Do it yourself.

Intext (Page 35)

Question 1.
What would you do if you had no water in your home for an entire day?
Answer:
If I had no water in my home for an entire day, it would not be easy to spend the day. I would:

• Use the stored water carefully for drinking, cooking and bathing.
• Collect water from other sources like asking neighbours, using a public tap, or waiting for a water tanker if available.
• Reuse water when possible, for example, water left after washing vegetables can be used for watering plants.
• Postpone house chores that need a lot of water, such as washing clothes or cleaning the house.

Question 2.
What if there was no water for a week? How would you bath, drink, cook or clean? Where would you go to find water?
Answer:
A whole week without water would make life very hard. It would show me how precious every drop is and why we must store, share, and save water at all times. I would:

• Take sponge baths using very little water or use wet towels to clean myself.
• Use stored drinking water wisely and avoid wasting it.
• Cook simple meals that need less water (like chapati instead of rice).
• Drink only as much water as you need-do not pour it away.
• Reuse water left from washing fruits or vegetables to water plants.

To find water, I would go to:

• Nearby hand pumps or wells, if clean and safe.
• Public water tanks or taps, if available.
• Community centres or schools, if they are supplying water.
• Ask neighbours who might have bore wells or stored water.
• Buy bottled water from the market for urgent need.
• Use water ATMs that give clean water.

Let Us Reflect (Page 37)

Question 1.
Find out which river(s) flow through your state.
(a) What are they used for?
(b) Are there any dams on them?
Answer:
(Answer may vary)
The main river that flows through Delhi is Yamuna river.
(a) This river is used for drinking water, farming, irrigation, generating electricity, performing rituals, recreation activities and helping recharge underground water levels.
(b) No, there is no dam built on Yamuna river in Delhi.

Question 2.
Ask your grandparents or parents to share any story or festival related to rivers in your region and present it in the class.
Answer:
(Answer may vary)
I live in Delhi with my grandparents and parents. The Yamuna river is the main river flowing through the city. My grandparents shared with me about the beautiful festivals like Yamuna aartion Ganga Dussehra and Chhath Puja. On Ganga Dussehra, people take a holy dip in the Yamuna river to wash away their sins. Many families go to places like Hathni Kund, where the Yamuna flows fresh and strong. Devotees offer flowers, light diyas, and perform aartiwhile singing prayers to the river.

Chhath Puja is mainly popular in Bihar and eastern Uttar Pradesh, but many families in Delhi celebrate it too, especially those who have migrated from those regions. People stand in the river water and offer arghya (water with prayers) to the setting Sun, and the next morning to the rising Sun. My grandmother remembers how peaceful the riverbank looked full of lights, diyas, and people singing devotional songs.

Question 3.
Ask an elder in your family:
(a) What was the condition of rivers when you were a child?
(b) What has changed since then?
Answer:
(a) (Answers may vary)
I asked my grandfather about the Yamuna river in Delhi when he was a child. He said that the Yamuna River used to be much cleaner and full of water. People would go there to bathe, wash clothes, and even drink the water. They used to play near the riverbanks, and many people used to go there for morning walks or religious rituals.

(b) (Answers may vary)
Grandfather said that now the river is dirty and polluted. Factories and drains pour waste into the Yamuna river. People throw garbage and plastic into it. The water is black in many places, and it smells bad. Earlier, it gave life; so now, it is important to protect Yamuna river from pollution and ensure clear water for future generations.

Question 4.
Why do you think people built houses and cities near rivers in the past? Are rivers still important today in the same way?
Answer:
In the past, people constructed cities and homes next to rivers for the following reasons.

• Rivers provided a regular supply of freshwater.
• River water helped grow crops and feed animals.
• Boats and ships could travel on rivers, making trade easier.
• Rivers are a source of food like fish and other aquatic life.
• People used river water for washing, bathing, and cleaning.

Yes, though their purpose has changed, rivers are still significant today as we still need rivers for drinking water, agriculture, electricity generation, maintaining wildlife balance, and for supporting factories and industries. Rivers are home to fish and other aquatic animals, which are an important source of food. We must protect them for our future.

Question 5.
If you could create one new rule to protect rivers in your city or village, what would it be?
Answer:
If I could create one new rule to protect rivers in my city or village, it would be: No drain or factory can discharge waste into the river without cleaning it in a treatment plant. This rule would help reduce pollution and keep the river water clean and safe for people, animals, and plants.

Question 6.
Think about a time when you wasted water. What could you have done differently?
Answer:
(Answer may vary) Once, I left the tap running while brushing my teeth and did not realise how much water was being wasted. I should have turned off the tap while brushing and used water only when needed. I could have used a mug to rinse instead of letting the water flow. I should be more careful and aware every time I use water, as every drop of water is precious. Even small actions can help save a lot of water.

Question 7.
Can you design a simple water filter using everyday materials? What would you include and why?
Answer:
Yes, a simple water filter can be designed by using everyday materials that are easily available.
Hint: We can use a plastic bottle, sand, gravel, charcoal and a piece of cotton cloth.

First, we cut the plastic bottle in half and placed the top part upside down like a funnel. Then, we tied a piece of cloth over the mouth of the bottle. Inside the bottle, we layered the materials in this order: fine sand at the bottom, then charcoal, followed by coarse sand, and finally gravel on the top. This setup was placed over a container to collect the filtered water.

When muddy water is poured in, the gravel traps large particles, sand removes dirt, charcoal filters harmful chemicals, and the cloth catches fine impurities. The filtered water appears much cleaner, but it should still be boiled before drinking to make it safe.

Question 8.
Imagine you are planning a new city near a river. What steps would you take to:
(a) keep the river clean.
(b) prevent floods during heavy rains.
(c) ensure there is always enough water for everyone, even during summers.
Answer:
If I were planning a new city near a river, I would take the following steps:
(a) To keep the river clean, I would treat all dirty water in sewage plants before it reaches the river and ban dumping of garbage and factory waste. I would also run awareness campaigns to encourage people to protect the river.

(b) To prevent floods during heavy rains, I would build strong floodwalls along the river and set up a good drainage system to remove extra rainwater. I would protect wetlands to absorb excess water and avoid building houses in lowlying or flood-prone areas to keep people safe during the monsoon. Aware people to keep useful items at home, such as sandbags, ladder, rope, etc., in flood prone areas.

(c) To ensure enough water during summers, I would build dams and reservoirs to store rainwater and promote rainwater harvesting in homes. Fixing leaks, encouraging water-saving habits, and reusing water for gardening and cleaning would help reduce wastage and ensure steady supply.

The post Journey of a River Class 5 Question Answer EVS Chapter 2 appeared first on Learn CBSE.

from Learn CBSE https://ift.tt/9pKq3no
via IFTTT