CBSE Class 8 Social Science Geography Chapter 1 Resources Notes

Key Points to Remember

• Anything that can be used to satisfy a need is a resource.
• Resources have utility (usefulness) and value (economic, aesthetic, legal, ethical).
• There are three main types of resources: Natural, Human-made, and Human.
• Natural resources are classified based on origin (biotic/abiotic), renewability (renewable/non-renewable), distribution (ubiquitous/localised), and stage of development (potential/actual/stock/reserve).
• Renewable resources replenish quickly, while non-renewable resources have limited stock and take millions of years to form.
• Resource conservation means using resources carefully and giving them time to get renewed.
• Sustainable development means balancing the need to use resources with the need to conserve them for the future.
• Human resources refer to the number and abilities (mental and physical) of people. Education and health improve human resources.
• Technology is a crucial human-made resource that helps convert natural substances into usable resources.

Essential Definitions

Resource

Anything that can be used to satisfy a need is called a resource.

Utility

The usability or purpose for which a substance can be used, giving it value.

Value

The worth or importance of a resource, which can be economic, aesthetic, legal, or ethical.

Patent

The exclusive right over any idea or invention.

Technology

The application of the latest knowledge and skill in doing or making things.

Renewable Resources

Resources that get renewed or replenished quickly, such as solar and wind energy.

Non-Renewable Resources

Resources that have a limited stock and once exhausted, may take millions of years to be renewed or replenished, e.g., coal, petroleum.

Resource Conservation

Using resources carefully and giving them time to get renewed.

Sustainable Development

Carefully balancing the need to use resources and also conserve them for the future.

Understanding Resource Classification

Resources are vital for human survival and development. They are broadly categorized into three types: Natural Resources, Human-made Resources, and Human Resources themselves.

Natural Resources are those drawn from nature and used without much modification. These can be further classified based on various factors:

1. Based on Origin:

• Biotic Resources: These are living resources, derived from the biosphere, such as plants, animals, and human beings.
• Abiotic Resources: These are non-living resources, like rocks, minerals, soil, water, and air.

1. Based on Renewability:

• Renewable Resources: These resources can be renewed or replenished quickly. Examples include solar energy, wind energy, water, forests, and agricultural crops. However, careless use can still lead to their depletion, like deforestation or overuse of groundwater.
• Non-Renewable Resources: These have a limited stock. Once the stocks are exhausted, it may take millions of years to be renewed or replenished. Examples include coal, petroleum, natural gas, and various metallic minerals.

1. Based on Distribution:

• Ubiquitous Resources: Resources found everywhere, such as air and sunlight.
• Localised Resources: Resources found only in certain places, like copper and iron ore.

1. Based on the Stage of Development:

• Potential Resources: Resources whose entire quantity may not be known and are not being used at present, but could be used in the future. For example, uranium found in Ladakh could be a potential resource.
• Actual Resources: Resources whose quantity is known and are being used in the present. The rich coal deposits in the Ruhr region of Germany or petroleum in West Asia are actual resources.
• Stock: Resources for which we have the technology to access but are not currently available for use (e.g., hydrogen in water).
• Reserve: A subset of stock, these are resources that can be put into future use with existing technology, but their usage has not been started (e.g., future water stored in dams).

Human-made Resources are created by humans using natural resources, such as buildings, bridges, roads, machinery, and vehicles. Technology itself is a crucial human-made resource.

Human Resources refer to the people themselves, their number, and abilities (mental and physical). Education and health are key factors in making people a valuable resource, enabling them to make the best use of nature to create more resources.

Comparison: Renewable vs. Non-Renewable Resources

Identifying Resource Types: Mini-Examples

• Example 1: Solar energy used to power homes. * Answer: This is a natural resource (from the sun) and a renewable resource (inexhaustible).
• Example 2: A student's knowledge and skills for problem-solving. * Answer: This represents human resources, as human intelligence and abilities are essential resources.
• Example 3: Roads and bridges connecting cities. * Answer: These are human-made resources, as they are created by humans using natural materials and technology.
• Example 4: Coal reserves deep underground. * Answer: This is a natural resource (found in nature) and a non-renewable resource (finite stock, takes millions of years to form).

Exam Tip: Differentiating Resource Concepts

In exams, students often confuse similar terms or misclassify resources. Pay close attention to the nuances between:

• Utility vs. Value: While all resources have utility, not all have economic value. For instance, beautiful landscapes have aesthetic value, not economic until turned into tourism spots.
• Renewable vs. Non-Renewable: Remember that even renewable resources like water and forests can be depleted if not used sustainably. Non-renewable resources are finite and require immediate conservation.
• Potential vs. Actual Resources: Questions might describe a resource found in abundance but not yet developed. This is a potential resource. If it's being actively used, it's actual. The presence of technology is key for actualization.
• Sustainable Development: This is a frequently asked concept. Ensure you can define it clearly and explain its importance with examples (e.g., reducing consumption, recycling, reusing, managing forest cover). Examiners look for examples that demonstrate understanding beyond just definitions.

Practice Questions with Solutions

• Q: What makes something a 'resource'? A: Anything that has utility or usability and can satisfy a human need is considered a resource.
• Q: Give two examples of 'ubiquitous resources'. A: Air and sunlight are ubiquitous resources as they are found everywhere.
• Q: Explain the term 'resource conservation'. A: Resource conservation means using resources carefully and responsibly, giving them time to get renewed or preserved for future generations.
• Q: Differentiate between a 'stock' and a 'reserve' with respect to resources. A: Stock refers to resources for which we have the technology to access but are not currently available for use (e.g., hydrogen in water). Reserve is a subset of stock, referring to resources that can be put into future use with existing technology, but their usage has not been started (e.g., future water in dams).

Frequently Asked Questions