VERY EASY
What is a resource?
Answer: Anything that can be used to satisfy a need is called a resource.
Differentiate between renewable and non-renewable resources.
Answer: Renewable resources can be replenished naturally, like solar energy, whereas non-renewable resources cannot be replenished at the same rate as they are consumed, like coal.
How are resources classified on the basis of origin? Give examples.
Answer: Resources based on origin are classified into biotic (living, e.g., forests and animals) and abiotic (non-living, e.g., water and minerals).
Discuss the role of human resources in transforming natural resources into valuable products.
Answer: Human resources apply knowledge, skills, and technology to convert raw materials into valuable products, thereby increasing their utility and economic value.
Name any two renewable resources.
Answer: Solar energy and wind energy.
What is meant by 'sustainable development'?
Answer: Sustainable development refers to using resources in a way that meets present needs without compromising the ability of future generations to meet their own needs.
What are human-made resources? Provide two examples.
Human-made resources are those created by humans using their knowledge and skills, such as buildings and machinery.
Explain the concept of 'sustainable development' and its significance.
Resource conservation involves careful and judicious use of resources, giving them time to renew, ensuring their availability for future generations.
Which of the following is a human-made resource?
a) Sunlight
b) Roads
c) Water
d) Forests
Answer: b) Roads
What are human resources?
Answer: People who use their knowledge and skills to produce goods and services are known as human resources.
How can the stock of renewable resources like water and forests be affected by overuse?
Answer: Overuse can lead to depletion and degradation of these resources, making them unsustainable.
Discuss the role of human resources in transforming natural resources into valuable products.
Answer: Human resources apply knowledge, skills, and technology to convert raw materials into valuable products, thereby increasing their utility and economic value.
What does the term 'utility' mean in the context of resources?
Answer: Utility refers to the usability of a substance to satisfy a need.
Give one reason why human beings are considered a special resource.
Answer: Human beings can use their intelligence and skills to convert natural substances into valuable resources.
What is the significance of technology in sustainable development?
Answer: Technology helps in the efficient extraction, utilization, and management of resources, turning potential resources into actual ones.
Why is the conservation of non-renewable resources important for future generations?
Answer: Non-renewable resources like coal, petroleum, and minerals take millions of years to form and cannot be replaced once exhausted. Conserving them ensures they are available for future generations and reduces environmental harm caused by over-extraction.
Which of these is an example of a non-renewable resource?
a) Wind
b) Coal
c) Solar energy
d) Water
Answer: b) Coal
What role do human beings play in the development of resources?
Answer: Human beings use their knowledge, skills, and technology to identify, develop, and utilize natural resources effectively.
Define 'human resources' and explain their importance.
Answer: Human resources refer to the number and abilities of people. They are important because they apply knowledge and skills to utilize natural resources effectively.
In what ways do human-made resources differ from natural resources in terms of creation and usage?
Answer: Human-made resources are created by people using technology and knowledge (e.g., machines, buildings), while natural resources occur in nature without human intervention (e.g., water, forests). Human-made resources often depend on natural ones for raw materials, and their usage involves more planning and effort in terms of development and sustainability.