Journey of a River

Given: A map showing the course of the river Godavari.

Answer: The Godavari river flows through the following states:
1. Maharashtra (where it originates near Trimbakeshwar, Nashik)
2. Telangana
3. Andhra Pradesh (where it meets the Bay of Bengal)

It also passes through parts of Chhattisgarh and Odisha in its basin area.

Given: A map showing features along the Godavari river.

Dam: The Godavari river has several dams built along it. A well-known dam is the Dowleswaram Barrage (also called Sir Arthur Cotton Barrage) in Andhra Pradesh. Another important dam is the Sriram Sagar Dam in Telangana.

Wildlife Sanctuary: The Papikonda Wildlife Sanctuary (also known as Papikonda National Park) is located along the Godavari river in Andhra Pradesh. The Kolleru Wildlife Sanctuary is also associated with the Godavari delta region.

Answer: Dam — Sriram Sagar Dam (Telangana); Wildlife Sanctuary — Papikonda Wildlife Sanctuary (Andhra Pradesh).

Given: A map showing tributaries of the Godavari.

Answer: Several small rivers (tributaries) join the Godavari during its journey. These include:
1. Pravara (joins in Maharashtra)
2. Manjira (joins in Telangana)
3. Pranhita (formed by the union of Wainganga, Wardha and Penganga rivers)
4. Indravati (joins from Chhattisgarh/Odisha side)
5. Sabari (joins in the lower course)

These tributaries add to the volume of water in the Godavari as it flows towards the Bay of Bengal.

Given: Information and images about life along the Godavari river.

Concept: Rivers support human life in multiple ways — for basic needs, livelihood, and agriculture.

Three ways people depend on the Godavari:
1. Drinking water: People living in villages and towns along the Godavari use its water for drinking and daily household needs.
2. Agriculture/Irrigation: Farmers use the river's water to irrigate their fields and grow crops like rice, sugarcane, and cotton.
3. Fishing: Many communities depend on fishing in the Godavari for their food and livelihood.

*(Other valid answers: transportation by boats, religious/cultural ceremonies, generating electricity through dams.)*

Given: Images and text describing life along the Godavari.

Answer: People near the Godavari are engaged in the following occupations:
1. Farming/Agriculture — growing crops using river water for irrigation.
2. Fishing — catching fish from the river for food and sale.
3. Boat-making and boating — transporting goods and people across the river.
4. Ecotourism — guiding tourists to enjoy the natural beauty of the river and its surroundings.
5. Weaving and handicrafts — some communities along the river are known for traditional crafts.
6. Trade and commerce — selling fish, crops, and other goods at markets near the river.

Given: Images showing farmland along the Godavari river.

Answer: The following crops are commonly seen growing near the Godavari river:
1. Rice (Paddy) — The Godavari delta is one of the most fertile rice-growing regions in India.
2. Sugarcane — Grown in the upper and middle course regions.
3. Cotton — Grown in parts of Maharashtra and Telangana along the river.
4. Tobacco — Grown in the delta region of Andhra Pradesh.
5. Vegetables and pulses — Also grown in smaller quantities along the riverbanks.

Note: This is a personal/local observation question. A sample answer is provided below.

Sample Answer:
In our region, crops like wheat, rice, mustard, and vegetables are commonly grown.

The water for irrigation comes from:
- Canals connected to nearby rivers or dams.
- Tube wells and bore wells that draw groundwater.
- Rainwater during the monsoon season.
- Ponds and tanks in some villages.

*(Students should fill in the name of crops and water sources specific to their own state or region.)*

Given: The text explains that dams block the flow of rivers and create reservoirs, which can cause displacement of people and animals.

Problems that arise after a dam is built:

| Problem | Explanation |
|---|---|
| 1. Displacement of people | Villages and towns near the reservoir get submerged; people lose their homes and have to move elsewhere. |
| 2. Loss of forests and wildlife | Forests and animal habitats get flooded, causing animals to lose their homes. |
| 3. Change in river flow | The natural flow of the river is blocked, which affects fish migration and the ecology downstream. |
| 4. Loss of fertile land | Agricultural land near the river gets submerged under the reservoir. |
| 5. Earthquakes | Large reservoirs can sometimes cause small earthquakes due to the weight of water. |

Solutions:
1. Proper rehabilitation — People displaced by dams should be given new homes, land, and compensation.
2. Wildlife corridors — Safe passages should be created for animals to move to new habitats.
3. Environmental impact assessment — Before building a dam, a thorough study of its effects on nature and people should be done.
4. Minimum water flow — A minimum amount of water (environmental flow) should always be released downstream to keep the river healthy.
5. Community involvement — Local people should be consulted and involved in decisions about dam construction.

Conclusion: While dams are important for water storage and electricity, they must be built carefully, keeping in mind the needs of people, animals, and the environment.

Given: The text discusses how waste and plastic pollute rivers.

Answer: When we litter plastic wrappers and bags carelessly, they travel through the following path:

1. Plastic thrown on roads and open areas is carried by wind and rainwater into drains and gutters.
2. From drains, it flows into small streams and canals.
3. Eventually, it reaches rivers, lakes, and ponds.
4. From rivers, plastic waste is carried all the way to the sea and oceans.

Harm caused:
- Fish, turtles, and birds may swallow plastic thinking it is food, which can kill them.
- Plastic blocks the sunlight from reaching underwater plants.
- Plastic breaks into tiny pieces called microplastics, which enter the food chain and can harm humans too.
- Plastic clogs drains, causing flooding during rains.

Conclusion: Plastic litter that we throw carelessly ultimately ends up in our water bodies, causing serious harm to aquatic life and human health.

Note: This is a personal observation question. A sample answer is provided.

Sample Answer:

Cleaners used at home:
- Soaps and shampoos (readymade, containing chemicals like sulphates and parabens)
- Floor cleaners / phenyl (chemical-based)
- Dishwashing liquid (contains synthetic detergents)
- Some homes also use natural alternatives like shikakai, reetha (soapnut), neem, and ash for cleaning.

Where does the dirty water go?
1. The water mixed with soaps and cleaners goes down the drain.
2. In cities, it enters the sewage system and ideally reaches a sewage treatment plant (STP) where it is cleaned before being released.
3. However, in many places, this dirty water flows directly into rivers, ponds, or the ground without treatment.
4. This pollutes the water bodies and harms aquatic animals and plants.
5. Chemicals in these cleaners can also seep into the groundwater, making it unsafe for drinking.

Conclusion: Using natural, eco-friendly cleaners reduces the amount of harmful chemicals that enter our water bodies.

Given: We are asked to think about common waste items and their impact on water bodies.

List of common waste items and their harm:

| Waste Item | Harm to River/Pond |
|---|---|
| 1. Plastic bags and wrappers | Animals and fish may swallow them and die; they block sunlight and oxygen in water. |
| 2. Food waste (leftover food) | Rots in water, reduces oxygen levels, causes bad smell, and promotes growth of harmful bacteria. |
| 3. Paper | Decomposes and reduces oxygen in water; in large amounts, it can clog waterways. |
| 4. Glass pieces | Can injure fish, animals, and people who wade in the water. |
| 5. Chemical/battery waste | Releases toxic substances that poison fish, plants, and make water unsafe for drinking. |
| 6. Old medicines | Chemicals from medicines dissolve in water and harm aquatic life and human health. |
| 7. Cloth and rags | Block the flow of water; animals can get entangled in them. |

Conclusion: Every item we throw carelessly can cause serious damage to water bodies. We must always dispose of waste responsibly — in proper bins, and support recycling and composting.

Given: Two glasses of water — one with sugar, one with cooking oil.

Observation:
- The glass with sugar appears clear — the sugar dissolves completely in water and cannot be seen.
- The glass with cooking oil appears cloudy or separated — the oil does not mix with water; it floats on top or forms droplets.

Which one appears clear? The glass with sugar appears clear.

Conclusion from experiment: Some substances dissolve in water (are soluble) and some do not (are insoluble). Even when water looks clean, it may contain dissolved harmful substances that we cannot see.

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Things that DISSOLVE in water (Soluble):
1. Sugar
2. Salt
3. Vinegar
4. Lemon juice
5. Some medicines
6. Chemical fertilisers
7. Soap (partially)

Things that DO NOT dissolve in water (Insoluble):
1. Cooking oil
2. Sand
3. Plastic
4. Wax
5. Chalk powder
6. Petrol/diesel
7. Mud (mostly)

Given: Two images — one showing a river with clean water, and another showing a river surface covered by a 'green blanket' of plants.

Which river looks healthy?
The river with clean, clear water looks healthy.

Why?
- It has clear water that allows sunlight to reach underwater plants and animals.
- Fish and other aquatic creatures can breathe and move freely.
- The water is safe for people and animals to drink.
- It supports a balanced ecosystem with plants, fish, birds, and insects.

How do so many plants grow in water?
When fertilisers used in farming get washed into the river by rain, they act as nutrients (food) for water plants and algae. These plants grow very rapidly because of the extra nutrients available to them. This process is called eutrophication.

What happens when too many plants grow in a river?
1. The plants cover the surface of the river like a 'green blanket', blocking sunlight from reaching deeper water.
2. Underwater plants cannot make food (photosynthesis stops), so they die.
3. As plants die and decompose, they use up the oxygen in the water.
4. Fish and other aquatic animals cannot breathe and begin to die.
5. The water becomes unsafe for drinking and smells bad.
6. The river slowly loses all its life — it gets 'choked'.

Conclusion: Excess fertilisers washing into rivers cause overgrowth of plants, which destroys the river's ecosystem. Farmers should use fertilisers carefully and in the right amounts to prevent this.