Minor Evs
Minor Evs
Minor Evs
Unit - 1
Natural Resources Introduction
Natural resources are naturally occurring materials that are useful to man or could
be useful under conceivable technological, economic or social circumstances or
supplies drawn from the earth, supplies such as food, building and clothing
materials, fertilizers, metals, water and geothermal power. For a long time, natural
resources were the domain of the natural sciences.
1. Renewable: resources that are available in infinite quantity and can be used
repeatedly are called renewable resources. Example: Forest, wind, water, etc.
2. Non-Renewable: resources that are limited in abundance due to their
non-renewable nature and whose availability may run out in the future are
called non-renewable resources. Examples include fossil fuels, minerals, etc.
Resources are the total amount of a material that exists in the earth's crust,
regardless of whether it can be extracted or not. This includes both identified and
undiscovered resources. Reserves, on the other hand, refer to the amount of a
material that can be extracted with current technology and prices. For a deposit to be
considered a reserve, it must be economically viable to extract. The identification
and assessment of both resources and reserves is important for understanding the
long-term availability of a material and its potential economic value.
● Biotic Resources: They have life and are obtained from the biosphere,
such as human beings, flora, and fauna, fisheries, livestock, etc.
● Abiotic Resources: Things that are composed of non-living things,
such as rock, metals, etc., are called abiotic resources.
● Renewable Resources: The resources which can be reproduced or
renewed by physical, chemical, or mechanical processes.
● Non-Renewable Resources: The resources which occur after a very
long geological time, like minerals and fossil fuels, are known as
non-renewable resources.
Degradation Of Natural Resources
Degradation of natural resources is one of the subjects of prime concern that the
world is facing today. The increasing human population has given birth to the evils
like the increase in pollution levels, deforestation, excessive use of non-renewable
resources, etc. All these have raised a question mark on the availability of natural
resources.
There are several factors that affect the availability of resources. Some of
the key factors include:
Certainly, here are some key points about natural resources management:
2. It aims to ensure that resources are used in a way that meets the needs
of the present without compromising the ability of future generations to
meet their own needs.