Chapter 2: Journey of a River Application Questions | Environmental Science - EVS Class 5 CBSE

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Chapter 2: Journey of a River Application Questions | Environmental Science - EVS Class 5 CBSE | ByteNotes.in

Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 1

Applied Concept

Imagine you are visiting Nashik during the Godavari Pushkaram. What kind of activities would you see people doing at the river?

You would see thousands of people gathered at the river banks to take a holy dip in the water.
This connects to the textbook concept that rivers like the Godavari are regarded as sacred and holy in India.
People would also be participating in prayers and traditional festivals to show their respect to the Dakshina Ganga.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 2

Applied Concept

Your friend wants to throw a plastic chocolate wrapper into a nearby pond. Based on what you learned, why should you stop them?

Throwing plastic into the water causes pollution, which makes the water dirty and can harm the animals living there.
The textbook explains that plastic waste makes it hard for creatures like fish and turtles to survive in their homes.
By stopping your friend, you are helping to keep the water clean and safe for all the plants and animals.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 3

Applied Concept

If a heavy rain warning is issued for your village near a river, what items should you pack in your emergency bag?

You should pack essential items like some food, clean drinking water, and any necessary medicines for your family.
The textbook also suggests including a flashlight so you can see if the power goes out during the flood.
Preparing this bag is a key safety measure to ensure you are ready to evacuate to a higher ground if needed.

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Application Question

Hard difficulty • Concept in a practical situation

Hard

Question 4

Applied Concept

A farmer is using a lot of chemical fertilizers near a river. What might happen to the river water after a big rainstorm?

The rain will wash the fertilizers into the river, where they will make aquatic plants grow very fast.
This will create a 'green blanket' on the surface that can choke the fish by taking away their air.
This scenario shows how activities on land can directly affect the health of the life inside the river water.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 5

Applied Concept

Why is it better for a city to be located near a perennial river like the Godavari rather than a seasonal river?

A perennial river provides a steady supply of water for drinking and other needs all year round, even in summer.
The textbook notes that seasonal rivers dry up when there is no rain, which would leave the city without water.
This constant flow supports local agriculture and industries consistently, making the city's life much more stable and easy.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 6

Applied Concept

You notice that the water from your tap comes from a river with a dam. Why should you use this water very carefully?

The textbook explains that many sacrifices, like people losing their homes and land, are made to build dams.
Using water wisely shows respect for those who had to move and for the animals whose habitats were flooded.
Saving water ensures that the stored supply in the reservoir lasts longer for everyone during the dry summer months.

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Application Question

Easy difficulty • Concept in a practical situation

Easy

Question 7

Applied Concept

If you are playing near a river after a flood, why is it dangerous to touch any fallen power lines or wires?

Fallen power lines can still carry high-voltage electricity that can cause a very dangerous or even fatal shock.
The chapter's safety tips specifically warn that touching power lines is a major hazard during and after flooding events.
It is important to stay far away from them and wait for trained professionals to come and fix the lines safely.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 8

Applied Concept

How can planting a tree in your school garden help the local water bodies?

Trees help the soil soak up rainwater more effectively, which prevents too much water from rushing into local rivers.
The textbook explains that trees slow down the runoff, which helps prevent sudden floods that can damage homes.
By planting a tree, you are also showing love to the river and helping the environment stay balanced and healthy.

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Application Question

Hard difficulty • Concept in a practical situation

Hard

Question 9

Applied Concept

If the water in a river looks clear but smells slightly like soap, is it safe to drink? Why or why not?

No, it is not safe because harmful chemicals or dirty soapy water can hide in a river even if it looks clean.
The experiment with sugar shows that some things dissolve completely and become invisible while still being present in the water.
Drinking this water could make you very sick, so it is better to use only properly treated or filtered water.

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Application Question

Medium difficulty • Concept in a practical situation

Medium

Question 10

Applied Concept

What would happen to the animals in the Kawal Tiger Reserve if the Godavari river were to dry up completely?

The tigers and other wildlife like barking deer would lose their primary source of water and might suffer or die.
The textbook states that freshwater sources are home to many plants and animals that have nowhere else to go.
Without water, the entire forest ecosystem would break down, and the animals might be forced to move toward human areas.

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Chapter 2: Journey of a River | Application Questions

Imagine you are visiting Nashik during the Godavari Pushkaram. What kind of activities would you see people doing at the river?

Your friend wants to throw a plastic chocolate wrapper into a nearby pond. Based on what you learned, why should you stop them?

If a heavy rain warning is issued for your village near a river, what items should you pack in your emergency bag?

A farmer is using a lot of chemical fertilizers near a river. What might happen to the river water after a big rainstorm?

Why is it better for a city to be located near a perennial river like the Godavari rather than a seasonal river?

You notice that the water from your tap comes from a river with a dam. Why should you use this water very carefully?

If you are playing near a river after a flood, why is it dangerous to touch any fallen power lines or wires?

How can planting a tree in your school garden help the local water bodies?

If the water in a river looks clear but smells slightly like soap, is it safe to drink? Why or why not?

What would happen to the animals in the Kawal Tiger Reserve if the Godavari river were to dry up completely?

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