RESOURCES AND DEVELOPMENT

What is a resource? Everything available in our environment which can be used to satisfy our needs, provided, it is technological accessible, economically feasible and culturally acceptable can be termed as ‘RESOURCE’. Physical environment HUMAN BEINGS technology institutions

VALUE OF A RESOURCE: The purely economic value of A resource is controlled by supply and demand. This is, however, A narrow perspective on resources as there are many things that cannot be measured in money.

CHARACTERISTICS OF RESOURCES: Resources have three main characteristics: utility, quantity (often in terms of availability), and consumption. However, this definition is not accepted by some, for example deep ecologists who believe that non-human elements are independent of human values.

TYPES OF RESOURCES: NATURAL RESOURCES Natural resources are derived from the environment. Many of them are essential for our survival while others are used for satisfying our needs.

The Earth is rich in natural resources that we use everyday The Earth is rich in natural resources that we use everyday. These resources are any valuable material of geologic origin that can be extracted from the earth. ENERGY RESOURCES: A major natural resource that all Americans rely on is petroleum fuel (oil or natural gas). Petroleum is an earth material that forms within the Earth and can be burned to produce heat and electricity or made into gasoline. Other fuels are coal, uranium, and alternative energy (wind, tidal, solar).

NONMETALLIC RESOURCES: Another natural resource that is very important to us is rock. We depend on sandstone, granite and other types of bedrock formed within and on the Earth to build our schools, homes, and skyscrapers. We use the mineral calcite as a main ingredient in cement and red clay to make bricks. We use sand, gravel gypsum and sulfur in everyday items. Soil is yet another natural resource that is necessary to support all plant life on Earth.

METALLIC RESOURCES: Iron, copper, aluminum, lead, zinc, gold, silver and many more are considered valuable resources that are vital for our modern society.

NATURAL RESOURCES CAN BE FURTHER DIVIDED INTO: ON THE BASIS OF ORIGIN BIOTIC RESOURCES: Biotic resources are those obtained from the biosphere. Forests and their products, animals, birds and their products, fish and other marine organisms are important examples.

ABIOTIC RESOURCES: Abiotic resources comprise non-living things. For examples include land, water, air and minerals such as gold, iron, copper, silver etc.

RENEWABLE RESOURCES ON THE BASIS OF EXHAUSTIBILITY Natural resources that can be replaced and reused by nature are termed renewable. Renewable resources are replaced through natural processes at a rate that is equal to or greater than the rate at which they are used, and depletion is usually not a worry. Some common examples include: Air (wind) Fresh water Soil Living organisms (trees) Sunlight RENEWABLE RESOURCES

NON- RENEWABLE RESOURCES Natural resources that cannot be replaced are termed nonrenewable. Nonrenewable resources are exhaustible and are extracted faster than the rate at which they formed. Some common examples are: Fossil fuels (coal, oil, natural gas) Diamonds and other precious gems and minerals Types of metals and ores

ON THE BASIS OF THE STAGE OF DEVELOPMENT POTENTIAL RESOURCES Potential resources are those that exist in a region and may be used in the future. For example, mineral oil may exist in many parts of India having sedimentary rocks, but until the time it is actually drilled out and put into use, it remains a potential resource.

ON THE BASIS OF DISTRIBUTION UBIQUITOUS RESOURCES: The resources that can be found everywhere. For example- air, light, water etc. LOCALIZED RESOURCES: Localized-are those that can be found only in certain parts of the world. For example-copper and iron ore, thermal power plant etc.

PERCENTAGE WATER RESOURCES IN WORLD

HUMAN MADE RESOURCES HUMAN RESOURCES Human beings are also considered to be resources. The term Human Resources can also be defined as the skills, energies, talents, abilities and knowledge that are used for the production of goods or the rendering of services. HUMAN MADE RESOURCES Sometimes, natural substances become resources only when their original form has been changed. Iron ore was not a resource until people learnt to extract iron from it. People use natural resources to make buildings, bridges, roads, machinery and vehicles, which are known as HUMAN-MADE RESOURCES. Technology is also a human made resource.

CONSERVATION Conservation is using natural resources wisely and not contributing to pollution of the land, air or water. Human activities can benefit the environment and help preserve resources. Conservation can include small-scale clean-up projects along roadways or building fences to prevent dune erosion to large-scale beach renourishment. Planting trees is another way to support conservation as trees are too often removed without being replanted. The phrase “Reduce, Reuse, and Recycle” has been a catch phrase of the late 20th and early 21st centuries.

REDUCE: Don’t use a resource if there is an alternative (walking vs REDUCE: Don’t use a resource if there is an alternative (walking vs. driving) REUSE: Use a resource again without changing it or reprocessing it: Use glassware as opposed to paper plates and Styrofoam RECYCLE: Reprocess a resource so that the materials can be used in another item. People can recycle just about anything from cardboard to old shoes! PROTECT: Prevent the loss of a resource (wildlife) by managing its environment. Rapid deforestation can wipe out both animals and plant life. By controlling the environment, we can control the resources.