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CBSE Solutions for Class 10 English

GSEB std 10 science solution for Gujarati check Subject Chapters Wise::

Name the way which helps the sand dune to stabilization.

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જવાબ : Shelter Belts have contributed significantly to the establishment of sand dunes.


What is strip cropping?

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જવાબ : Large fields divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of the wind. This method is known as strip cropping.


Name the institution which is empowered by the government of India to acquire land?

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જવાબ : Urban Development Authorities


By which name is the bad land known in Chambal basin?

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જવાબ : Ravines


How much degraded land is present in India?

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જવાબ : 130 million hectare


Give any two factors which determine the land use pattern of a nation.

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જવાબ : Topography and Population


From which Five Year Plan has India made concerted efforts for achieving the goals of resource planning?

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જવાબ : First Five Year Plan


Which type of soil is found in the river deltas of the Eastern Coast?

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જવાબ : Alluvial Soil


Who wrote the book ‘Small is Beautiful’?

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જવાબ : Schumacher


Write the two types of renewable resources.

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જવાબ : Continuous and Biological resources


Where was first international earth summit held?

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જવાબ : Rio de Janeiro in Brazil


In which state overgrazing is the main reason of land degradation in India?

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જવાબ : Gujarat


Which region of India is known as Basalt region?

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જવાબ : The Deccan trap region spread over northwest Deccan plateau.


Mention the reason due to which red soils looks red?

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જવાબ : These soils develop a reddish colour due to diffusion of iron in crystalline and metamorphic rocks.


Name the soils which are well known for their capacity to hold moisture.

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જવાબ : Black soils


Name any two nutrients which are found in black soils?

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જવાબ : Calcium carbonate and magnesium


Name the nutrient in which black soils is poor?

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જવાબ : Phosphoric contents


Name the soil which is suitable for the cropping of cashew nuts.

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જવાબ : Red Laterite Soil


Why are the lower horizons of the soil occupied by Kankar?

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જવાબ : Because of the increasing calcium contents downwards


Name the areas where terrace farming is practiced in India?

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જવાબ : Western and central Himalayas of India


Solar energy is an example of ___________ resource.

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જવાબ : renewable 


The resources which can be renewed or reproduced by physical, chemical or mechanical processes are known as _________ resources.

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જવાબ : renewable


Rocks and metals are examples of ___________ resource.

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જવાબ : abiotic 


All those things which are composed of non-living things are called ________ resources.

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જવાબ : abiotic


________ Resources are obtained from biosphere and have life such as human beings, flora and fauna, fisheries, livestock etc.

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જવાબ : Biotic


On the basis of exhaustibility resources can be classified as _________ and ________ resources.

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જવાબ : renewable & non-renewable


On the basis of origin, resources can be classified as _________ and _________ resources.

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જવાબ : biotic & abiotic


_________ are a function of human activities.

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જવાબ : Resources


What is resource planning?
 

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જવાબ : Resource planning is proper and judicious planning of resources.


What are the factors which help in the formation of soil?

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જવાબ : Relief, parent rock or bedrock, climate, vegetation and other forms of life and time are important factors in the formation of soil.


What do you mean by ‘international resources’?

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જવાબ : The oceanic resources beyond 200 nautical miles of the Exclusive Economic Zone are international resources.


Give two examples of Renewable resources.

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જવાબ : Solar energy and wind energy


How can resources be classified on the basis of origin?

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જવાબ : On the basis of origin, resources can be classified into biotic and abiotic resources.


Which soil is also known as cotton soil?

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જવાબ : Black soil is known as cotton soil.


What is Agenda 21?

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જવાબ : Agenda 21 is the declaration signed by world leaders in 1992 to combat environmental damage, poverty, disease through global co-operation on common interests, mutual needs and shared responsibilities.


What do you, mean by land use pattern ? Name the factors that determine the use of land.

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જવાબ : Utilization of land for various purposes such as cultivation grazing of animals mining construction of roads etc. Factors
1) Topography
2) Climate
3) Human Factor
4) Accessibility


What type of soil is found in river deltas of the eastern coast ? Give three main features of this type of soil.

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જવાબ : Alluvial Soil
1) Most important soil
2) Such a soil is the result of deposits of river.
3) Very fertile soil.


Write two characteristics each of Khadar and Bangar ?

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જવાબ : Khadar (New Alluvium)
1) New Alluvium a new soil
2) Very fertile soil less Kankar nodules Bangar (Old Alluvium)
1) Old Alluvium or Old soil
2) Not to fertile, often contains Kankar nodule


When and why was the Rio-de-Janero Earth summit held ?

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જવાબ : 1992 Rio-de-Janero (Brazil)


What steps can be taken to control soil erosion in hilly areas ?

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જવાબ : 1) Terracing on hilly area
2) Buildings Dams on hilly areas
3) Afforestation


What refers to the sustainable development ?

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જવાબ : b) Development should take place without damaging the environment.


What is the main cause of land degradation in Madhya Pradesh ?

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જવાબ : Deforestation


What method is used to break up the force of wind?

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જવાબ : Shelter belt


What is responsible for sheet erosion ?

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જવાબ : Water


What resources can be acquired by the Nation ?

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જવાબ : National resources


Which type of soil develops due to high temperature and evaporation ?

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જવાબ : Arid Soil


How much percentage of forest area in the country according to the National Forest Policy.

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જવાબ : 33%


Which one of the following soil is the best for cotton cultivation ?

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જવાબ : Black soil


What term is used to identify the old and new alluvial respectively ?

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જવાબ : Bangar & Khadar


Coal, iron ore, petroleum, diesel etc. are the examples of __________

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જવાબ : Non Renewable resources


What is resource planning? Give three phases of resource planning.

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જવાબ : Resource planning is proper and judicious planning of resources.
The phases of resource planning are:
• Identification and inventory of resources across various regions of the country. It involves surveying, mapping, qualitative and quantitative estimation and measurement of the resources.
• Evolving a planning structure, endowed with appropriate technological skill and institutional set up for implementing resource development plans.
• Matching the resource development with overall national development plans.

 


Define resources. How are resources classified?

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જવાબ : Anything which can be used to satisfy our needs is technologically accessible, economically feasible and culturally acceptable can be termed as ‘Resource’.
The resources can be classified into various categories:
• On the basis of origin – biotic and abiotic
• On the basis of exhaustibility – renewable and non-renewable
• On the basis of ownership – individual, community, national and international
• On the basis of status of development – potential, developed stock and reserves.

 


Describe any three steps that can be taken to solve the problem of land degradation?

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જવાબ : Three steps that can be taken to solve the problem of land degradation:
• Afforestation and proper management of grazing.

• Planting of shelter belts of plants and control on over grazing.
• Proper management of waste lands and control of mining activities.

 


Describe any three main characteristics of arid soil of India.

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જવાબ : Three characteristics of Arid soils in India are:
(i) These soils range from red to brown in colour.
(ii) These soils are generally sandy in texture and saline in nature.
(iii) The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards.

 


Describe the type of resources classified on the basis of exhaustibility.

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જવાબ : The resources on the basis of exhaustibility are classified into two categories:
• Renewable Resources: The resources which can be renewed or reproduced by physical, chemical or mechanical processes are known as renewable or replenishable resources. For example, solar and wind energy, water, forests and wildlife, etc.
• Non-Renewable Resources: These resources take millions of years in their formation. Minerals and fossil fuels are examples of such resources. Some of the resources like metals are recyclable and some like fossil fuels cannot be recycled and get exhausted with their use.

 


Describe the steps to control soil erosion in hilly areas?

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જવાબ : The soil erosion in hilly areas can be controlled by:
• Contour ploughing: Ploughing along the contour lines can decelerate the flow of water down the slopes.
• Terrace cultivation: Steps can be cut out on the slopes making terraces which restricts erosion.
• Strip cropping: Large fields are divided into strips and strips of grass are left to grow between the crops.

 


Why is resource planning essential?

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જવાબ : It is essential to have resource planning because:
• Resources are limited in supply.
• Resources are unevenly distributed over the surface of the earth.
• Exploitation and over utilisation of resources must be checked.


What is soil? Analyse the factors which help in the formation of soil.

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જવાબ : The uppermost layer of earth is called soil. It is the most important renewable natural resource. It is the medium of plant growth and supports different types of living organisms on the earth.
The four main factors which help in the formation of soil are:
• Relief, parent rock or bed rock, climate, vegetation and other forms of life and time are important factors in the formation of soil.
• Various forces of nature such as change in temperature, actions of running water, wind and glaciers, activities of decomposers etc. contribute to the formation of soil.
• Chemical and organic changes which take place in the soil are equally important.


Explain the classification of resources on the basis of ownership.
OR
Provide a suitable classification for resources on the basis of ownership. Mention main features of such resources.

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જવાબ : Classification of resources on the basis of ownership:
• Individual Resources: Resources which are owned privately by individuals such as plots, houses, plantation, pasture lands, ponds etc.
• Community Owned Resources: Resources which are accessible to all the members of the community such as grazing grounds, burial grounds, village ponds etc.
• National Resources: All the resources within the political boundaries and oceanic area upto 12 nautical miles (22.2 km) from the coast termed as territorial water and resources therein belong to the nation.
• International Resources: The oceanic resources beyond 200 nautical miles of the Exclusive Economic Zone belong to open ocean and no individual country can utilise these without the concurrence of international institutions.


What do you understand by a ‘Resource’? Give examples. (2015)

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જવાબ : Everything available in our environment which can be used to satisfy our needs, is called a resource. It should be technologically accessible, economically feasible and culturally acceptable. Only then, it can be termed as a ‘Resource’. Examples are: minerals, forests, fossil fuels etc..


“India has enormous diversity in the availability of resources.” Name four varied regions to justify this statement.

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જવાબ : There are regions which are rich or self-sufficient in certain types of resources and there are areas that are deficient or have acute shortage of some vital resources.
For example:

  1. The states of Jharkhand, Chhattisgarh and Madhya Pradesh are rich in minerals and coal deposits.
  2. Arunachal Pradesh has abundance of water resources but lacks in infrastructural development.
  3. Rajasthan is very well endowed with solar and wind energy but lacks in water resources.
  4. The cold desert area of Ladakh has very rich cultural heritage. It is deficient in water, infrastructure and some vital minerals.
    Such cases call for balanced resource planning at different levels.


How are natural resources important for man? Give five points.

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જવાબ : Importance of resources for man:

  1. Resources are vital for human survival.
  2. They are important for maintaining the quality of life as man has been using the bio-physical environment to satisfy his needs.
  3. Natural resources form the backbone of the economy of a nation.
  4. These are the bases for economic strength and prosperity of the people.
  5. They provide material, energy and favourable conditions for development.


Distinguish between Stock and Reserves.

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જવાબ : Stock. Materials in the environment, which have the potential to satisfy human needs but man does not have the appropriate technology to access them are included among stock, e.g. water is a compound of two inflammable gases: hydrogen and oxygen, which can be used as a rich Source of energy. But we do not have the required technical know-how to use them for this purpose. Reserves. Reserves are the subset of the stock, which can be put into use with the help of existing technical ‘know-how’ but their full use has been postponed for meeting the future needs, e.g., forest reserves, iron-ore reserves, water in the dams etc.


Distinguish between Potential and Developed Resources;

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જવાબ : Potential Resources. Resources which are found in a region, but have not been utilised, e.g.r Gujarat and Rajasthan have a lot of potential for the development of wind and solar energy, but so far they have not been developed fully.
Developed Resources. Resources which are surveyed and their quality and quantity have been determined for utilisation. The development of resources depends on technology and level of their feasibility, e.g., water resources used for hydel power generation or irrigation purposes.


Explain four types of resources based on ownership and give one example of each type. (2014)

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જવાબ : On the basis of ownership, there are four types of resources:

  1. Individual Resources. Resources, which are owned privately by individuals, e.g., farmers own
    pieces of land or houses. Plantation, pasture lands, water in wells are some resources owned by individuals.
  2. Community Owned Resources. These resources are accessible to all the members of the community, e.g., village ponds, public parks, playgrounds in urban areas are accessible to all the residents of that area.
  3. National Resources. All the resources within the political boundary of a nation including the territorial water (oceanic area upto 12 nautical miles from the coast) extending into the ocean and resources therein belong to the nation, e.g., all minerals, forests, wildlife, water resources, land etc.
  4. International Resources. There are international institutions which own and regulate some resources, e.g., The oceanic resources beyond 200 km of the Exclusive Economic Zone belong to the open ocean and no individual country can utilise these without the concurrence of international institutions.


Write two characteristics of non-renewable resources and write their two broad categories with examples.

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જવાબ : Two characteristics of non-renewable resources:

  1. They cannot be recycled and get exhausted with their use.
  2. They take millions of years in their formation.
Two broad categories of non-renewable resources:

  1. Recyclable resources, e.g., metals.
  2. Non-recyclable resources, e.g., fossil fuels.


Classify the resources on the basis of exhaustibility and give two examples of each.

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જવાબ : On the basis of exhaustibility, resources can be classified as: Renewable and Non-renewable.

Renewable Resources. The resources which can be renewed or reproduced by physical, chemical and mechanical processes are known as renewable or replenishable resources, e.g., water, wildlife, forests, solar energy, wind energy etc.

Non-renewable Resources. The resources which once get exhausted, cannot be remade. They take a long geological period of time, i.e., millions of years in their formation, e.g., minerals, fossil fuels etc.


Explain the classification of resources on the basis of origin and give one example of each.

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જવાબ : On the basis of origin, resources can be classified as Biotic and Abiotic.
Biotic Resources are obtained from the biosphere. They have life or are living resources, e.g., human beings, fisheries, forests, etc.
Abiotic Resources include all non-living things, e.g., rocks and minerals.


Write the classification of resources on four different bases. (2015)

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જવાબ : Resources can be classified in the following four ways:
(a) On the basis of Origin:

  • Biotic
  • Abiotic
(b) On the basis of exhaustibility:

  • Renewable
  • Non-renewable
(c) On the basis of ownership:

  • Individual (Personal)
  • Community
  • National
  • International
(d) On the basis of status and development:

  • Potential
  • Developed
  • Reserve
  • Stock


“Resources are a function of human activities.” Justify this statement.

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જવાબ : Mere presence of resources, as free gifts of nature, does not make them resources. Human beings are essential components of resources because they transform material available in our environment into resources. The utility of resources depends on the stage of cultural development of man and the tools and technology used by him.


There are No Content Availble For this Chapter

1

Resources 

A

Resources are obtained from biosphere and have life such as human beings, flora and fauna, fisheries, livestock etc.

2

Biotic 

B

All those things which are composed of non-living things

3

Abiotic

C

are a function of human activities.

4

The resources which can be renewed or reproduced by physical, chemical or mechanical processes

D

renewable 

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જવાબ :

1-C, 2-A, 3-B, 4-D

1

renewable 

A

 resources which are accessible to all the members of the community.

2

non-renewable

B

Solar energy

3

Community Owned Resources

C

The first International Earth Summit

4

Rio de Janeiro

D

Minerals and fossil fuels

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જવાબ :

1-B, 2-D, 3-A, 4-C

1

3.28 million sq km

A

 red to brown in colour.

2

alluvial soil

B

Total geographical area of India

3

Regur soil

C

The entire northern plains are made of

4

Arid soils

D

Black soil

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જવાબ :

1-B, 2-C, 3-D, 4-A

1

Alluvial soils

A

potash, phosphoric acid and lime.

2

Black soil

B

sandy in texture and saline in nature

3

Arid soils

C

 poor in phosphoric contents

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જવાબ :

1-A, 2-C, 3-B

1

Alluvial

A

Eastern and southern part of the deccan plateau, Orissa, Chattisgarh

2

Black (Regur soil)

B

Gujarat,  Punjab, Haryana, UP, Bihar, Jharkhand etc.

3

Red

C

Deccan plateau- Maharashtra, Madhya Pradesh, Gujarat, Andhra Pradesh,Tamil Nadu

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જવાબ :

1-B, 2-C, 3-A

1

Alluvial

A

Iron and Potash

2

Black (Regur soil)

B

Iron oxide and potash

3

Red

C

Lime, Iron, Magnesia and Alumina, Potash

4

Laterite

D

Potash and Lime

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જવાબ :

1-D, 2-C, 3-A, 4-B

1

Alluvial

A

Cashewnuts, tea, coffee, rubber

2

Black (Regur soil)

B

Wheat, rice, cotton, sugarcane and pulses

3

Red

C

Cotton, sugarcane, jowar, tobacco, wheat, rice etc.

4

Laterite

D

Large variety of rabi and kharif crops such as wheat, rice, sugarcane, cotton, jute etc.

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જવાબ :

1-D, 2-C, 3-B, 4-A

1

Red

A

Unfit for agriculture

2

Laterite

B

Wheat, rice, cotton, sugarcane and pulses

3

Arid and Desert

C

Cashewnuts, tea, coffee, rubber

4

Saline and Alkaline

D

barley, rape, cotton, millets maize and pulses

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જવાબ :

1-B, 2-C, 3-D, 4-A

1

Laterite

A

Western Gujarat, deltas of eastern coast, Sunderban areas of West Bengal, Punjab and Haryana

2

Arid and Desert

B

Karnataka, Kerala, Tamilnadu, Madhya Pradesh, Assam and Orissa hills.

3

Saline and Alkaline

C

Western Rajastan, north Gujarat and southern Punjab

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જવાબ :

1-B, 2-C, 3-A

1

Laterite

A

Soluble salts, phosphate

2

Arid and Desert

B

Sodium, Potassium, Magnesium

3

Saline and Alkaline

C

Iron oxide and potash

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જવાબ :

1-C, 2-A, 3-B

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