Unit 1: Resources
I. Match the following.
1. Natural resource - minerals
2. International resource - Sustainable development.
3. Reduce, Reuse, Recycle - Air
4. Non-renewable - Manufacturing
5. Universal resource - Ambergris
6. Secondary activities - Forest.
Ans:
1. Natural resource - Forest
2. International resource - Ambergris
3. Reduce, Reuse, Recycle - Sustainable development.
4. Non-renewable - Minerals.
5. Universal resource - Air
6. Secondary activities - manufacturing.
II. Fill in the blanks.
1. Sugarcane is processed to make sugar.
2. Conservation of resources is careful use of resources.
3. Resources which are confined to certain regions are called localized resources.
4. Actual resources are being used in the present.
5. Commercial resources are the most valuable resources.
6. Collection of resources directly from nature is called primary activities.
III. Write a short notes on the following.
1. Renewable resources.
After consumption, resources can be renewed with the period of time is called renewable resources. E.g. Air, water, sunlight.
2. Human resources.
Human resources are groups of individuals who use nature to create more resources.
3. Individual resources.
Individual resources are resources privately owned by individuals. E.g. Apartments.
4. Tertiary activities.
Tertiary activities are basically concerned with the distribution of primary and secondary products through a system of transport and trade. E.g. Banking, Trade and communications.
IV. Give brief answers for the following.
1. What are resources?
The resource is anything that fulfills human needs. When anything is of some use it becomes valuable.
All resources have value.
The value can be either commercial or non-commercial.
2. What are actual resources?
Actual resources are resources that are being used and the quantity available is known. E.g. coal mining at Neyveli Lignite Corporation.
3. Define abiotic resources.
Abiotic resources are non-living things. Water, Land, air and minerals are abiotic resources.
4. What is sustainable development?
Development is necessary without affecting the needs of future generations.
If the present needs of resources are met and the conserving of resources for the future is balances, we call it sustainable development.
V. Give short answers to the following questions.
1. Differentiate universal and localized resources.
2. Though human beings are natural resources, why they classified separately?
Because education, health, knowledge, and skill have made them valuable resources. E.g. Doctors, Scientists, and Teachers.
3. Compare National and International Resources.
4. What is the difference between man-made resources and human resources?
5. Write the Gandhian thought on conservation of resources.
Mahatma Gandhi blammed “human beings” for the depletion of resources because of
Overexploitation of resources.
Unlimited needs of human beings. So, conservation is very important.
VI. Give detailed answers to the following questions.
1. How are natural resources classified? Explain any three with examples.
Natural resources are classified according to theirs,
Origin
Development
Renewability
Distribution
Ownership
Origin:
On the basis of origin they are further classified into biotic resources and abiotic resources.
Biotic resources: All living resources are biotic resources. Eg. Plants, animals, microorganisms.
Abiotic resources: Non-living resources are abiotic resources. E.g. land, water, air, minerals.
Development:
On the basis of development, they are classified into actual resources and potential resources.
Actual resources: The resources that are being used at present are actual resources and their quantity are known. E.g. Coal at Neyveli.
Potential resources: The resources that are not utilized at present are potential resources. The quantity and location are not known. E.g. Marine yeast in oceans.
Renewability:
On the basis renewability, they are classified into renewable resources and non-renewable resources.
Renewable resources: After consumption, resources can be renewed with the period of time is called renewable resources. E.g. air water, sun light.
Non-renewable resources: Natural resource that have limited stock are non-renewable resources. E.g. Coal, petroleum, minerals.
2. How can resources be conserved?
Careful use of resources is the conservation of resources.
Due to the rapid increase in population the resources are being utilized at a very fast rate.
To avoid this we need sustainable development. Sustainable development can take place when
Wastage and excess consumption is presented.
Reusable resources are recycled.
Pollution is prevented.
Environment is protected.
Natural vegetation and wildlife are preserved.
The easiest way to conserve resources is to follow the “3Rs” : Reduce, Reuse, and Recycle.
3. What is resource planning and why is it necessary?
The technique or skill of proper utilization of resources is Resource planning. Resource planning is necessary because,
Resources are limited and we have to use them properly. Also, we have to save the resources for our future generation.
Resources are unevenly distributed over the different parts of the world.
It is also essential for the production of resources to protect them from overexploitation.
4. Explain primary, secondary and tertiary activities.
Primary activities:
They are concerned with the production of raw materials for foodstuff and industrial use.
Primary activities include agriculture, cattle rearing, fishing, mining, collection of fruits, nuts, honey, rubber, resin, and medical herbs.
Secondary activities:
The raw materials obtained from the primary activities are converted into finished products through machinery on a large scale.
These activities are called secondary activities.
Tertiary activities:
Tertiary activities are basically concerned with the distribution of primary and secondary products through a system of transport and trade.
E.g. Banking, Trade and communication.
VII. Statement and inferences.
1. Statement: Solar energy is the best substitute for thermal energy in tropical regions.
Inference 1: Coal and petroleum resources are receding.
Inference 2: Solar energy will never deplete.
Only conclusion 1 follows.
Only conclusion 2 follows.
Neither 1 nor 2 follows.
Both 1 and 2 follows.
Ans:d) Both 1 and 2 follow.
2. Statement: If you don’t conserve resources, the human race may become extinct.
Inference !: You need not conserve resources.
Inference 2: You need to conserve resources.
Only conclusion 1 follows.
Only conclusion 2 follows.
Neither 1 nor 2 follows.
Both 1 and 2 follows.
Ans: b) only conclusion 2 follows.
3. Statement: Man switched over to agriculture.
Inference 1: Food gatherers experienced scarcity of food.
Inference 2: Food gathered was not nutritious.
Only conclusion 1 follows
Only conclusion 2 follows.
Neither 1 nor 2 follows.
Both 1 and 2 follows.
Ans: a) only conclusion 1 follows.
VIII. Given are three suggestions to conserve resources: Write the 3Rs in suitable places.
1. Giving your childhood cycle to your neighbour.
Ans: Reuse.
2. Using a flush that consumes less water.
Ans: Reduce.
3. Melting used plastic to lay roads.
Ans: Recycle.
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