Cbse Board Class 8, Ncert Social Science (Geography)
RESOURCES - Answers of Sample Questions
Answer.1: All those substances which have
some utility or usability are resources for us.
The different criteria required for
anything to be resource for us are -
(i) utility or usability.
(ii) economic value or any other value.
(iii) time and technology inherent, which can make the
substance important for present or future requirements
of the people. For example, invention of
fire, wheel etc.
Answer.2: In general there are three types
of resources: Natural, Human - made, and Human.
Natural Resources
Resources that are drawn
from nature and used without much modification are called Natural Resources.
For example, air, water in well, rivers and lakes, soil, minerals etc. Natural
resources are further divided into various types such as Actual, Potential,
Abiotic, Biotic, Renewable, Non-renewable, Ubiquitous and Localized resources.
Human - Made
Resources
Such resources which
have been changed from their original form by human effort are called as Human
- Made Resources. For example, buildings, roads, bridges etc. Technology is
also an important example of Human - Made Resources.
Human Resources
Since people can make
the best use of nature to create more resources with the help of their
knowledge, skill and technology, so, people are human resources. Human
resources refer to the number and abilities of the people.
Answer.3: On the basis of origin natural
resources are classified into Abiotic and Biotic.
Abiotic Resources: These are non-living natural resources
like - soils, rocks, minerals etc.
Biotic resources: These are living natural resources
like - plants and animals.
Answer.4: On the basis of
stock natural resources are further classified or subdivided into Renewable and
Non-renewable types.
Renewable Resources: Such resources are renewed quickly.
These are found in abundance and unaffected by human activities. For example,
solar and wind energy.
Non-Renewable
Resources: Such
resources have a limited stock in the nature and may take thousands of years to
get renewed. Since this period is much more than human life spans, so, they are
called Non-Renewable Resources. For example, coal deposits, petroleum deposits
etc.
Answer.5: 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
generation is known as sustainable development. The basic principles of sustainable
development are given below:
1. Respect and care for
all forms of life.
2. Improve the quality
of human life.
3. Conserve the earth’s
vitality and diversity.
4. Minimize the
depletion of natural resources.
5. Change personal
attitude and practices towards the environment.
6. Enable communities to
care for their own environment.
Further study on Chapter-1,
Resources and Development
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