SCERT AP Board 7th Class Social Solutions 4th Lesson Oceans and Fishing Textbook Questions and Answers.
AP State Syllabus 7th Class Social Studies Solutions 4th Lesson Oceans and Fishing
7th Class Social Studies 4th Lesson Oceans and Fishing Textbook Questions and Answers
Improve Your Learning
Does Bhavanapadu look like the place you live in? What differences and similarities can you think of? Compare them on the following aspects,
a. Sources of livelihood
b. Types of employment
c. Water sources
d. Agriculture practices
No. Bhavanapadu is a village on the coastline of Andhra Pradesh. Ours is a village Nandamaru, Unguturu Mandal in West Godavari district.
|Comparison||Bhavanapadu||Our village Nandamuru|
|a.||Sources of livelihood||Fishing, Agriculture||Agriculture|
|b.||Types of employment||Laborers in fields salt pans, brokers||Agricultural laborers, shop owners, vegetable vendors, etc.|
|c.||Water sources||Ocean water||River, canal, and well water.|
|d.||Agriculture practices||Old systems||Old and modern systems.|
How many types of ocean movements are there? Which of them is useful to the fishermen
The water of the oceans is never still. There are different kinds of movements of water.
Ocean waters have three kinds of movements. They are:
- Waves: When the water on the surface of the ocean rises and falls, they are called waves. They are formed when gentle winds scrape across the ocean surface. The faster the wind, the bigger will be the waves.
- Currents: In the oceans, water is found to move from one part to another in big streams. These streams flow constantly in a definite direction on the surface of the ocean a called ocean currents. The ocean currents are of two types – The warm currents and the cold currents. The warm currents flow from the equatorial region towards the poles. The cold currents flow from the poles to towards the equatorial regions.
- Tides: Tides are the rhythmic rise and fall in the level of the water in the oceans every day. All places on the coast experience some hours of low tide and some hours of high tide. Tides do not rise to the same height every day. When the tide is high water comes up to the coast for some distance. Then as the low tide begins, the water moves back from the land. The tides are of great help to fishing. Tides at some places take away the mud brought down by rivers and prevent silting.
What is the difference between fishing with Mechanical boats and that of Karrateppa?
|1. It is a costly boat. It costs around Rs. 6 lakhs.||1. It is a country-made boat. So it is very cheap.|
|2. It has a capacity of 20 members. It has far more risk of life.||2. It has the capacity of a few members. It has not had many risks compared to Marapadava.|
|3. Rs. 5000/- needed for a trip for diesel, wages, and other things.||3. It does not need much money.|
|4. They can go far off places in the sea and can fish for a long time.||4. It can cover very short distances.|
|5. In case of emergency, it is difficult to swim over to the shore.||5. In case of emergency, it is easy to swim over to the shore.|
Write the process of getting a mechanical boat ready for fishing?
The boat is made ready the day before with all the necessary things properly loaded. Before launching into the sea :
- The fishermen check the engine.
- They also check the rope puller.
- The additional stock of diesel is kept in the boat.
- They keep their food packages in the boat.
- They pray to the goddess in whom they have a strong faith.
What does the tool kit of fisherman contain?
The fisherman has a special tool kit for repairing the nets which consists of Nulukarralu (net remaining fork), Nulukanda (thread), and a flattened stick that determines the net ring size.
What are the similarities that you find between the surface of the earth and the bottom of the sea?
The floor of the ocean is just like the surface of the earth. The bottom of the sea is not a flat surface. It consists of hills, mountains, plateaus, plains, and trenches, etc.
Collect information about the aquifers of your village/town and fill in the table. Analyze the benefits.
|S.No.||Name of the aquifer||Uses||Limitations|
|1.||Confined aquifer||Drinking water||The aquifer and vulnerability maps can assist with the planning process. In order to assist in the correct interpretation and use of the maps, SEPA alerts the user to the following limitations.|
|2.||Unconfined aquifer||Cultivation||Higher vulnerability ratings do not necessarily mean that all activities are unsuitable. Groundwater vulnerability is only one component of risk.|
|3.||Semi confined aquifer||Domestic use||The maps will be updated as new geological information becomes available. Maps of receptors will he added, identifying the location of known groundwater abstractions and groundwater-dependent ecosystems.|
Make an album that reflects the life of fishermen.
These pictures express the life of fishermen.
Locate the coastal districts of Andhra Pradesh and write them down.
- P.S.R. Nellore
- East Godavari
- West Godavari
What solutions do you show to the fishermen for not depending on the middlemen for money?
The fishermen should form themselves as an association or should open a cooperative bank. The association or bank should act as middlemen for the sake of money.
Across the last 4 chapters, we studied many different aspects of water. Here is more information about the availability of water on our Earth. Look at them carefully and explain the availability of water resources on the Earth.
71% of our Earth is covered with water.
a) Out of the total water on earth, 97% is saline water and 3% is freshwater.
b) Out of the total freshwater, icecaps and glaciers are 68.7%, groundwater 30.1%, surface water is 0.3% and other is 0.9%.
c) Out of the total fresh surface water, lakes are 87%, swamps are 11% and rivers are 2%.
How do you support the statement ‘The life of fishermen is tied up with seas’.
I supported the following statement. The life of fishermen is tied up With seas, why because he doesn’t know any other work. From childhood days onwards he depends on the sea to catch the fish and continue his life. He earns money for his family through fishing only. He has no capacity to live in either village or town because he has no assets and large lands. His main occupation is fishing only. He felt that the sea or Ocean is god and world to him also.
Read the first para of page 32 and comment on it.
Fishing Village on the Coastal Plains
Ocean water is always saline. It contains several mineral salts dissolved in it. The oceans are the main source of rainfall. Oceans are storehouses of fish and other seafood. They are the main source of salts. Oceans provide natural highways for international trade. Let us visit Bhavanapadu, a fishing village near the coast of Andhra Pradesh, and study the life of people living near the ocean.
The oceans are useful to us in many ways
- We get salt from the ocean water.
- Seas abound in mineral wealth.
- Oceans provide us with large quantities and a variety of marine foods such as fish, shrimp, oysters, and crabs, etc.
- The oceans serve as water transport systems from one continent to another continent. It is cheaper to transport heavy cargo through navigation.
- Pearls are found in oysters.
Read some writings which reference the lifestyle of fishermen. Eg: Samajanv Musalodu, Aatu-Potu (Janjhavathi Kathalu)