Excercises
1. Answer the following questions.
(i) Why are resources distributed unequally over the Earth?
Answer The distribution of resources depends upon a number of physical factors like terrain, climate and altitude. Since these factors differ so much over the Earth, the distribution of resources is unequal.
(ii) What is resource conservation?
Answer Using resources carefully and giving them time to get renewed is called resource conservation.
(iii) Why are human resources important?
Answer People are human resources and human resources are important because people can make the best uses of nature to create more resources by applying knowledge, skill and technology.
(iv) What is sustainable development?
Answer Balancing the need to use resources and also conserve them for the future is called sustainable development. In other words, carefully utilizing resources so that besides meeting the present requirements it also takes care of the need of future generations is what is known as sustainable development.
2. Tick the correct answer.
(i) Which one of the following does not make a substance a resource?
(a) Utility
(b) Value
(c) Quantity
► (c) Quantity
(ii) Which one of the following is a human-made resource?
(a) Medicines to treat cancer
(b) Spring water
(c) Tropical forests
► (a) Medicines to treat cancer
(iii) Biotic resources are
(a) Derived from living things
(b) Made by human beings
(c) Derived from non-living things
► (a) Derived from living things
3. Differentiate between the following.
(a) Potential and actual resources
(b) Ubiquitous and localised resources
(a)Potential resource
1)A resource whose entire quantity is not known
2)These not being used at present, but could be used
in the future.
3)The present level of technology is not advanced enough to utilise it 4)Example: The uranium found in Ladakh,
Actual resource
1) A resource whose quantity is known
2)Being used in the present
3)The present level of technology is advance enough to utilise it.
1)A resource which is found everywhere
Example: The air we breathe
1. Answer the following questions.
(i) Why are resources distributed unequally over the Earth?
Answer The distribution of resources depends upon a number of physical factors like terrain, climate and altitude. Since these factors differ so much over the Earth, the distribution of resources is unequal.
(ii) What is resource conservation?
Answer Using resources carefully and giving them time to get renewed is called resource conservation.
(iii) Why are human resources important?
Answer People are human resources and human resources are important because people can make the best uses of nature to create more resources by applying knowledge, skill and technology.
(iv) What is sustainable development?
Answer Balancing the need to use resources and also conserve them for the future is called sustainable development. In other words, carefully utilizing resources so that besides meeting the present requirements it also takes care of the need of future generations is what is known as sustainable development.
2. Tick the correct answer.
(i) Which one of the following does not make a substance a resource?
(a) Utility
(b) Value
(c) Quantity
► (c) Quantity
(ii) Which one of the following is a human-made resource?
(a) Medicines to treat cancer
(b) Spring water
(c) Tropical forests
► (a) Medicines to treat cancer
(iii) Biotic resources are
(a) Derived from living things
(b) Made by human beings
(c) Derived from non-living things
► (a) Derived from living things
3. Differentiate between the following.
(a) Potential and actual resources
(b) Ubiquitous and localised resources
(a)Potential resource
1)A resource whose entire quantity is not known
2)These not being used at present, but could be used
in the future.
3)The present level of technology is not advanced enough to utilise it 4)Example: The uranium found in Ladakh,
Actual resource
1) A resource whose quantity is known
2)Being used in the present
3)The present level of technology is advance enough to utilise it.
4)Example: The dark soils
of the Deccan plateau in Maharashtra which could be
used in the future
(b)
Ubiquitous resource
1)A resource which is found everywhere
Example: The air we breathe
Localised resource
1) A resource which is found only in certain places
1) A resource which is found only in certain places
Example: Copper
Key Words /glossary:-
• Utility: A substance has utility if it can be used in any possible way to satisfy our needs.
• Value: Worth of a substance assessed on the basis of utility.
• Patent: It applies to the exclusive right over any idea or invention.
• Resource: Any substance having utility in any way is a resource.
• Technology: The application of the latest knowledge and skills in doing or making things is called technology.
• Natural Resource: Natural resources are those that are taken from nature.
• Actual Resource: An actual resource is one which is used currently and whose quantity is known.
• Potential Resource: A potential resource is one whose utility is not known at present or is not used despite having utility: instead it may be useful at some time in future.
• Abiotic Resource: An abiotic resource is a non-living resource.
• Biotic Resource: A biotic resource is a living resource.
• Renewable Resource: A renewable resource can be used without any risk of its ending up because they exist in unlimited quantity.
• Non-renewable Resource: A non-renewable resource is one which is present in limited quantity.
• Ubiquitous Resource: A ubiquitous resource is one that is found everywhere.
• Localised Resource: A resource that is found only in certain parts of the world and not everywhere.
• Human-made Resource:Resources invented by human beings by using their intelligence are called human made resources.
• Human Resources: A human being who can contribute to his family, society, or economy is called a. human resource.
• Human Resource Development: Human resource development refers to the improvement of people’s skills so that they become more useful than before and are a better resource.
• Stock of Resource: The amount of resource, available for use is called its stock.
• Resource Conservation: Resource conservation is the concept of using resources carefully so that they do not end up quickly.
• Sustainable Development: It is the concept of using resources in a balanced way so that our purpose is solved, as well as they are also conserved for the future.
• Value: Worth of a substance assessed on the basis of utility.
• Patent: It applies to the exclusive right over any idea or invention.
• Resource: Any substance having utility in any way is a resource.
• Technology: The application of the latest knowledge and skills in doing or making things is called technology.
• Natural Resource: Natural resources are those that are taken from nature.
• Actual Resource: An actual resource is one which is used currently and whose quantity is known.
• Potential Resource: A potential resource is one whose utility is not known at present or is not used despite having utility: instead it may be useful at some time in future.
• Abiotic Resource: An abiotic resource is a non-living resource.
• Biotic Resource: A biotic resource is a living resource.
• Renewable Resource: A renewable resource can be used without any risk of its ending up because they exist in unlimited quantity.
• Non-renewable Resource: A non-renewable resource is one which is present in limited quantity.
• Ubiquitous Resource: A ubiquitous resource is one that is found everywhere.
• Localised Resource: A resource that is found only in certain parts of the world and not everywhere.
• Human-made Resource:Resources invented by human beings by using their intelligence are called human made resources.
• Human Resources: A human being who can contribute to his family, society, or economy is called a. human resource.
• Human Resource Development: Human resource development refers to the improvement of people’s skills so that they become more useful than before and are a better resource.
• Stock of Resource: The amount of resource, available for use is called its stock.
• Resource Conservation: Resource conservation is the concept of using resources carefully so that they do not end up quickly.
• Sustainable Development: It is the concept of using resources in a balanced way so that our purpose is solved, as well as they are also conserved for the future.
Thank you sir
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