Day 1 L1 Resources

Grade 8
Resources
THINK- PAIR and SHARE – discuss with
your shoulder partners.
• What were the resources which early
humans discovered and invented?
• Mona and Raju were helping their

mother to clean their house. “Look at all
these things…. Mona said.”clothes,
utensils, food grains, combs, thisbottle of
honey, books…..Each of these have
• a use,”said Mona. The mother said,”
that’s why they are important and are
resources.”
Learning Objectives
• Evaluate the principles of sustainable resource

management, including conservation, preservation, and
responsible use.
• Analyze the impact of human activities on natural

resources and ecosystems.
Keywords
• Commercial value
• Aesthetic value
• Biotic
• Abiotic
• Exhaustible resources
• Desalination
Textbook-
• Our Earth is a unique planet which has opportunities for survival

and sustenance of life. Our natural environment is a vast
storehouse of innumerable usable substances. We need these
things to fulfil our basic needs as well as to satisfy our urge for a
better living.
Resources as per the needs:-
• Dalu is a tribal living on the fringes of a forest.
• He collects forewood and honey from the forest and sells it in the
local market. Sitanath is a farmer in the nearby village. He makes his
living by tilling the soil to grow crops. His brother Naresh works in
a factory in the town where iron from the mines are processed into
steel.
• The forests, the soil and the mines are providing usable substances
that have utility for Dalu, Sitanath,Naresh and all alike.
• Hence these usable substances are resources.
• The utility of the substances provides them worth or value and they
become resources. They may or may not have economic value. But as
long as they satisfy our wants they are resources.
• For example, the forest has economic or commercial value for the
people who sell products gathered from it.
• But for you and me it has only aesthetic value. Your intelligence, your
talents may not have economic value now. But once you culture them and
use them to earn money they become economically valuable resources.
• Similarly, anything which is patented and sold by a firm is economically
valuable. (Patent means the exclusive right over any idea or invention.)
Resources-Flow Chart
Resources
Definition of resources :-
• The natural substances that have utility and functionality, i.e., the
capacity to fulfil human needs are termed as resources.
• Resources are those materials which are made available and usable by
the technology present with the objective of satisfying human wants.
• For example, coal is only a piece of rock until power is generated from
it or by-products are produced.
Classification of Resources
Resources are generally classified into and.
Natural
Man- made
Human Resources
Natural Resources-
T
Types of Natural Resources-Natural resources are classified into different groups depending upon their level
of development and use.
Biotic
On the basis of
their origin
Abiotic
Renewable or
inexhaustible
resources
On the basis of
their exhaustibility Non-renewable or
exhaustible
resources.
Potential Resources
Based on the stages
of development
Actual Resources.
ON THE BASIS OF
ORIGIN
Biotic Resources
1. Biotic resources are substances obtained from living beings.

2. They include vegetation, birds, domestic animals and wildlife.
3. Everything within the biosphere which has some utility for man is a biotic
resource.
How Biotic resources can be utilized in different ways?

1. Vegetation can give rise to economic activities like forestry and lumbering,
pastoral farming and agriculture.
2. Animals and fishes can be used for livestock raising, dairy farming and fisheries.
1. Man himself is a biotic resource. He is often termed as human resource. It is the

most important resource because the use and development of all other resources
is determined by humans.
2. The humans with their intelligence transform naturally occurring substances into
usuable resources.
ON THE BASIS OF
ORIGIN
Abiotic Resources
1. These are non-living substances.
2. They include air, water, land or soil, rocks and minerals in the Earth’s crust.
3. They can be used directly, for example, the land can be used as a site for a house and rocks can be
used to build the house.
4. They can be used indirectly, for example, minerals can be extracted from the Earth and be used in
industries to make various products.
How Biotic resources can be utilized in different ways?

1. Vegetation can give rise to economic activities like forestry and lumbering, pastoral farming and
agriculture.
2. Animals and fishes can be used for livestock raising, dairy farming and fisheries.
1. Man himself is a biotic resource. He is often termed as human resource. It is the most important
resource because the use and development of all other resources is determined by humans.
2. The humans with their intelligence transform naturally occurring substances into usuable resources.
ON THE BASIS OF
EXHAUSTIBILITY
Renewable or Inexhaustible Resources:
1. Flow resources are best examples of inexhaustible resources.

2. They include sunlight, wind, water, air etc. From time immemorial water and air are being used by
man. They can be repeatedly used as they are replenished by natural process.
3. As their stock is continuous, they are called flow resources. But the quantity of sunlight is not
affected due to its injudicious use.
1. With advancement of science and technology we are able to make better use of these flow
resources. Power is also generated from solar energy.
2. The force of wind and waves and even heat from Earth’s interior is now being used to generate
energy. Renewable resources are those which do not get exhausted with use.
3. They may be temporarily diminished with use, but are renewed again by natural process or proper
management. For example, fertility of soil in agricultural lands is reduced with use, but may be
increased again by addition of manures
1. Biotic resources are renewable resources.

2. They can multiply and are naturally renewed by the process of reproduction. For example,
forests can be regenerated by afforestation
ON THE BASIS OF
EXHAUSTIBILITY
Non-renewable Or Exhaustible Resources:
1. Exhaustible resources are substances whose stock decrease and gradually disappear with use.
2. They cannot be replenished or recovered, so they are called non-renewable resources.
3. They are abiotic resources whose quantities are more or less fixed because their formation takes
millions of years.
4. They get exhausted, i.e., they are usually destroyed with use, e.g., fossil fuels and minerals.
BASED ON THE STAGES OF
DEVELOPMENT
Potential Resources :
1. The power of water, wind and waves can be harnessed to produce energy.
2. Mineral deposits lie buried in mountains and oceans.
3. Though these resources have the capacity to fulfil human wants, they may not be utilised until
technical knowhow makes them accessible and usable.
4. Even now there are vast reserves of resources which cannot be used presently with available
technology or infrastructure.
1. These resources which exist but cannot be exploited presently, remain as stock for future use.
2. They are termed as Potential Resources, for example, water in the oceans which we cannot use for
drinking purpose.
3. By the process of desalinisation we can solve the problem of shortage of water. But the process is
difficult and extremely costly.
4. We do not have proper expertise to use it, but our future generations may be able to do so with
further advancement of science and technology.
BASED ON THE STAGES OF
DEVELOPMENT
Actual Resources.
1. Natural substances whose location and condition have been determined and which are already being
utilised by present generation are termed as actual resources.
2. The area with any particular resource is surveyed.
3. The quantity and quality of the resource is determined.
4. It is then obtained and put to valuable use. The coal and iron reserves of USA which have helped in
rapid industrialisation of the country are its actual resources.
BASIS ON OWNERSHIP
Individual Or Personal Resources-owned by an individual, e.g., land,house, wells, orchards, etc.
National resources-e.g., forests, wild-life, mines, water and land resources within political boundaries of a
country and everything that belongs to a country are its national resources.
Community Resources -e.g., ponds, parks,playgrounds which can be used by all members of the
community.
World Resources-are the sum total of resources of all countries.

BASIS OF DISTRIBUTION,
Ubiquitous resources, e.g. sunlight, wind,etc. which are found everywhere.
Localized resources, e.g., coal, petroleum which are found in particular places on the earth.
Answer type questions
1. What is meant by human resource?

2. Give the classification of resources on the basis of their exhaustibility. Give two examples of each.
3. Distinguish between abiotic and biotic resources.
4. Distinguish between Potential and Actual Resources
5. Compare and Contrast between inexhaustible and exhaustible resources

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Grade 8

• Mona and Raju were helping their

• Evaluate the principles of sustainable resource

• Analyze the impact of human activities on natural

• Our Earth is a unique planet which has opportunities for survival

1. Biotic resources are substances obtained from living beings.

How Biotic resources can be utilized in different ways?

1. Man himself is a biotic resource. He is often termed as human resource. It is the

How Biotic resources can be utilized in different ways?

1. Flow resources are best examples of inexhaustible resources.

1. Biotic resources are renewable resources.

Individual Or Personal Resources-owned by an individual, e.g., land,house, wells, orchards, etc.

World Resources-are the sum total of resources of all countries.

Ubiquitous resources, e.g. sunlight, wind,etc. which are found everywhere.

1. What is meant by human resource?

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