The question asks for the term that describes improving people's skills to enable them to create more resources. This directly relates to the development and enhancement of human capabilities.
Correct Option: A) Human resource development is the process of improving the skills, knowledge, and abilities of people, which in turn enables them to be more productive and create more resources.
The question asks for the term that describes the careful use of resources and allowing them time to renew. We need to evaluate each option to find the best fit for this definition.
Based on this evaluation, "Resource conservation" is the most accurate term for the description provided.
Correct Option: A) Resource conservation is the careful management and protection of natural resources to prevent their depletion or destruction, which includes using them judiciously and allowing them time to renew.
The question asks for the term that describes the balance between using natural resources and ensuring their availability for future generations. This concept is fundamental to environmental studies and development policy.
Correct Option: D) Sustainable development is the concept that involves balancing the current use of resources with the need to conserve them for future generations. It emphasizes meeting present needs without jeopardizing the ability of future generations to meet their own needs.
The question asks for the definition of "the amount of resources available for use." We need to identify the term that precisely describes this concept in the context of resource management and economics.
Correct Option: A) Stock of a resource — This term precisely defines the total quantity of a resource that is available for use at a given time.
The question asks to identify the two most crucial factors that transform substances into valuable resources. This concept is fundamental to understanding resource development and economics.
Correct Option: B) Time and technology are described as the most important factors in changing substances into resources. Time refers to the fact that the value of a substance as a resource can change over time, and technology provides the means to transform and utilize substances.
The question asks about the approximate percentage of the Earth's total surface area covered by land. This is a fundamental geographical fact that aspirants for competitive exams should know. The Earth's surface is primarily covered by water, with a smaller portion being land.
C) About 30 per cent
The Earth's surface is approximately 71% water and 29% land. Therefore, "About 30 per cent" is the closest and most accurate approximation among the given options for the land area.